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Source: http://tonyforster.blogspot.com/feeds/posts/default/-/Sugar

<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet href="http://www.blogger.com/styles/atom.css" type="text/css"?><feed xmlns='http://www.w3.org/2005/Atom' xmlns:openSearch='http://a9.com/-/spec/opensearchrss/1.0/' xmlns:blogger='http://schemas.google.com/blogger/2008' xmlns:georss='http://www.georss.org/georss' xmlns:gd="http://schemas.google.com/g/2005" xmlns:thr='http://purl.org/syndication/thread/1.0'><id>tag:blogger.com,1999:blog-21691604</id><updated>2024-04-25T10:41:00.250+10:00</updated><category term="Sugar"/><category term="olpc"/><category term="TurtleArt"/><category term="games"/><category term="Python"/><category term="TurtleBlocks"/><category term="WoW"/><category term="gamemaker"/><category term="IDT545"/><category term="constructivism"/><category term="maths"/><category term="programming"/><category term="Kerr"/><category term="Web2.0"/><category term="ASISTM"/><category term="Arduino"/><category term="OCC2007"/><category term="VanEck"/><category 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term="QuestAtlantis"/><category term="Scratch"/><category term="VELS"/><category term="XO"/><category term="camping"/><category term="chile strike torresdelpaine natales gas price"/><category term="gas price"/><category term="google"/><category term="indigenous"/><category term="instruction"/><category term="learningobject"/><category term="motivation"/><category term="problem_solving"/><category term="renewable"/><category term="school"/><category term="video"/><category term="walk"/><category term="ACMI"/><category term="Acheron"/><category term="Adryanee"/><category term="Antarctica"/><category term="Blender"/><category term="Bogong"/><category term="Browse"/><category term="Calca"/><category term="Cusco"/><category term="Dragonage"/><category term="Dunbar"/><category term="EdGCM"/><category term="Falls Creek"/><category term="Gateways"/><category term="Goulburn"/><category term="Goulburn River High Country Rail Trail"/><category term="Great Victorian Rail Trail"/><category term="HOT"/><category term="Hansen 1988"/><category term="IWB"/><category term="JimGee"/><category term="Lares"/><category term="Lego"/><category term="Model II"/><category term="NTeQ"/><category term="Nepal"/><category term="Osorno"/><category term="Peru"/><category term="PeteBorder"/><category term="Petrohue"/><category term="Picada"/><category term="Quellopuito"/><category term="Raspberrypi"/><category term="Romania"/><category term="Rylands"/><category term="Schaffer"/><category term="Totora"/><category term="VirtualWorlds"/><category term="Warburton"/><category term="Wedo"/><category term="Wegner"/><category term="Wii"/><category term="Windows"/><category term="WisconsinMaddison"/><category term="Yasi"/><category term="alice"/><category term="berwick"/><category term="birthday"/><category term="bushfire"/><category term="calculus"/><category term="climate change"/><category term="clock"/><category term="computers"/><category term="cyclone"/><category term="economics"/><category term="environment greenhouse"/><category term="epistemic"/><category term="flood"/><category term="flow"/><category term="free"/><category term="gas"/><category term="global warming"/><category term="gravity"/><category term="hail"/><category term="high plains"/><category term="hut"/><category term="live"/><category term="maps"/><category term="mental-models"/><category term="microhydro"/><category term="mouse"/><category term="orchid"/><category term="patagonia"/><category term="podcast"/><category term="price"/><category term="probability"/><category term="rail trail"/><category term="recursion"/><category term="red cross"/><category term="research"/><category term="semiotics"/><category term="steam"/><category term="steam clock"/><category term="travel"/><category term="weather"/><title type='text'>Tony Forster</title><subtitle type='html'></subtitle><link rel='http://schemas.google.com/g/2005#feed' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/posts/default'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/-/Sugar'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/search/label/Sugar'/><link rel='hub' href='http://pubsubhubbub.appspot.com/'/><link rel='next' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/-/Sugar/-/Sugar?start-index=26&max-results=25'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><generator version='7.00' uri='http://www.blogger.com'>Blogger</generator><openSearch:totalResults>80</openSearch:totalResults><openSearch:startIndex>1</openSearch:startIndex><openSearch:itemsPerPage>25</openSearch:itemsPerPage><entry><id>tag:blogger.com,1999:blog-21691604.post-7505843242116549173</id><published>2012-09-24T22:06:00.001+10:00</published><updated>2012-09-24T22:24:44.875+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Arduino"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Python"/><category scheme="http://www.blogger.com/atom/ns#" term="Raspberrypi"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="XO"/><title type='text'>Hackable places</title><content type='html'>I recently got my <a href="http://www.raspberrypi.org/">Raspberry Pi</a>, a cheap single board Linux computer designed for education and hacking. I already have OLPC laptops and Arduinos as hackable places, but it looked like fun. Now I have it I can assess it as a learning tool in home and school contexts.
 
You can buy from <a href="http://au.element14.com/raspberry-pi/raspbrry-pcba/sbc-raspberry-pi-model-b/dp/2081185?Ntt=raspberry+pi">Element 14/Farnell</a> or <a href="http://raspberrypi.rsdelivers.com/default.aspx?cl=1">RS Components</a>&nbsp; for A$38 but after freight it was A$56 (A$1 is approximately US$1). It arrived from Element 14 in 2 days. Home/school will probably have some of the accessories at hand, but if not the full cost is:
 
&nbsp;Rasperry Pi with tax and freight&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A$56 
&nbsp;Power supply 5V micro USB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A$20 
&nbsp;Memory card 4GB&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A$15 
&nbsp;AV cable &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; A$2 
&nbsp;USB keyboard &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; A$14 
&nbsp;USB mouse&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A$5 
&nbsp;Television&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ? 
&nbsp;Total&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A$112+
 
Compare that with another Linux computer designed for educational hacking, the OLPC laptop at $188 or more realistically $200+ with freight. Consider an old unused PC or laptop as a hacking platform. 
 
Writing the <a href="http://www.raspberrypi.org/downloads">OS</a>, Raspian (Debian) Wheezy, to the memory card was easy, once I really read the instructions. I used the <a href="http://elinux.org/RPi_Easy_SD_Card_Setup#Copying_an_image_to_the_SD_Card_in_Linux_.28command_line.29">Linux method to setup the card using dd</a> an OLPC XO laptop, I did have to use another computer to unzip the 1.9GB OS when it failed on the XO. 
 
Not having a hi definition TV I used composite video (the yellow plug). I was disappointed with the screen resolution. Its presumably quite good on a hi def tv. 
 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg0HeGIFcPY6FmJoDlixN0_ExVvWuwpS0cL3HJMZZ_CmQPC2QwbITQWG_GP3avCE1Ufs6Tc823Xstqt2mTeMK2F_7zXZIr69ilui0qONuoCVxdI6WuovR8MYWOJ3e76nj6SAII5A/s1600/Untitled.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="209" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg0HeGIFcPY6FmJoDlixN0_ExVvWuwpS0cL3HJMZZ_CmQPC2QwbITQWG_GP3avCE1Ufs6Tc823Xstqt2mTeMK2F_7zXZIr69ilui0qONuoCVxdI6WuovR8MYWOJ3e76nj6SAII5A/s320/Untitled.jpg" width="320" /></a></div>
<div style="text-align: center;">
Rasperry Pi GUI, LXDE displayed on a composite TV</div>
 
Next step was to <a href="http://elinux.org/RPi_Remote_Access">run the Raspberry Pi remotely</a> from an OLPC laptop using ssh. 
 
Get the IP address of the raspberry Pi 
 
&nbsp; hostname -I 
 
 
That's the last time you will need the Rasperry Pi keyboard or TV unless its IP address changes. On the OLPC XO laptop in Terminal enter: 
 
<pre>ssh -X <ip address="address" of="of" rpi="rpi">ipaddress -l logon <username on="on" rpi="rpi"></username></ip></pre>
<pre>for example</pre>
<pre>ssh -X 10.1.1.5 -l Pi</pre>
 
That brings up the Raspberry PI command line interface on the XO. You can run xwindow programs, they display using the XO's window manager. 
 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBcFqyRwmmrB2b1GJgy_N6ffodK7bNHO0WyXj2jMUw-wW-kejozzA07M5UhJHVsLZzXL-0wcjWT8HkqJfvLanKVmBG9upeoaW8Ziwf3Ed3L6TqUCL8WHj7gnjPQpnibsmKk6AZcQ/s1600/sshot.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="179" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBcFqyRwmmrB2b1GJgy_N6ffodK7bNHO0WyXj2jMUw-wW-kejozzA07M5UhJHVsLZzXL-0wcjWT8HkqJfvLanKVmBG9upeoaW8Ziwf3Ed3L6TqUCL8WHj7gnjPQpnibsmKk6AZcQ/s320/sshot.jpg" width="320" /></a></div>
<div style="text-align: center;">
The Rasperry Pi File Manager displaying on an XO </div>
 
You cannot start the Pi's desktop with the usual startx, but you can run almost everything using the XO desktop eg 
 
pcmanfx&nbsp; the file manager 
midori&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; web browser 
leafpad &nbsp; &nbsp; text editor 
idle &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; python IDE 
lxtask &nbsp; &nbsp;&nbsp; the task manager 
 
 
Though startx does not start the Pi desktop but startlxde gives some success. In Sugar, the desktop is always hidden but the bottom menu bar is available. Using OLPC build 3 13.1.0 in Gnome, the Pi's desktop is visible, possibly due to a bug where the XO's Gnome desktop is not displayed. 
 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1yNQQpvs8BRMHC0MUbHF8_q_P8sCh24sr58pXVO8V9mxg2CPZobYu4XxL4jV28nFyZ-9eKoR3OW8CMNr6oEn7dRFTIovFScTCZvn-FZVKUTQn5CoNQVRasyX8EB6RGW-48YK7ZA/s1600/Untitled.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="239" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1yNQQpvs8BRMHC0MUbHF8_q_P8sCh24sr58pXVO8V9mxg2CPZobYu4XxL4jV28nFyZ-9eKoR3OW8CMNr6oEn7dRFTIovFScTCZvn-FZVKUTQn5CoNQVRasyX8EB6RGW-48YK7ZA/s320/Untitled.jpg" width="320" /></a></div>
<div style="text-align: center;">
The Pi's desktop, LXDE displaying on an XO running Gnome, (build 3, 13.1.0)</div>
 
So why use the Pi at home or school? School is unlikely to have a class set of TV's or space for them. Home is unlikely to have the USB keyboard, power supply and cables. But both school and home are likely to have older underpowered PC's or laptops (which can be reimaged to Linux if desired) and used as hacking platforms. Those with OLPC laptops have a computer, purpose designed for hacking. 
 
The Pi does provide an additional hacking platform, having multiple platforms is a good thing, not all tasks 'click' or work for all learners. 
 
The Pi can be used as an I/O board like the Arduino. Unfortunately its I/O pins are not protected and can be damaged by 0V (27mA) or voltage &gt;3.3V. Compare with the Arduino I/O which can source up to 20mA to ground and be connected to 5V. 
</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/7505843242116549173/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=7505843242116549173' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/7505843242116549173'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/7505843242116549173'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2012/09/hackable-places.html' title='Hackable places'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg0HeGIFcPY6FmJoDlixN0_ExVvWuwpS0cL3HJMZZ_CmQPC2QwbITQWG_GP3avCE1Ufs6Tc823Xstqt2mTeMK2F_7zXZIr69ilui0qONuoCVxdI6WuovR8MYWOJ3e76nj6SAII5A/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-3303748224871229307</id><published>2012-06-10T19:22:00.001+10:00</published><updated>2012-06-11T08:29:43.944+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="gamemaker"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Galton Box</title><content type='html'><div class="separator" style="clear: both; text-align: center;">
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The Galton box, is a device invented by Sir Francis Galton to demonstrate the central limit theorem, in particular that the normal distribution is approximate to the binomial distribution. The machine consists of a vertical board with interleaved rows of pins. Balls are dropped from the top, and bounce left and right as they hit the pins. 
 
<a href="http://en.wikipedia.org/wiki/Bean_machine">http://en.wikipedia.org/wiki/Bean_machine</a> 
 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjggLK1hSkWB4E_nqDAeDxyZV4HpSNAGk0-1jX5W2bqcBn-7R_3i1_LL3aGDjvsDKVauK44zLsvjQd2x4j604Lg5PNJSxmvn8CPIdi_x0JDNuUo4JYkNPnjfPWg-6lE_G5MjTBxCg/s1600/galton.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjggLK1hSkWB4E_nqDAeDxyZV4HpSNAGk0-1jX5W2bqcBn-7R_3i1_LL3aGDjvsDKVauK44zLsvjQd2x4j604Lg5PNJSxmvn8CPIdi_x0JDNuUo4JYkNPnjfPWg-6lE_G5MjTBxCg/s320/galton.jpg" width="205" /></a></div>
 
<div style="text-align: center;">
Galton Box in Game Maker, <a href="https://www.box.com/s/970884be93e9c30d9188">source and executable</a></div>
<div style="text-align: center;">
 </div>
 
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpT16fn9stbycrGlmVgeEByJ7BllcTkOHrSF_LrpkH5mBVt59pqxljc3qhAr2cQ6xkC8l5N5k6MEiCCAOSOIDNUbAtRLyymoK15948YFMnGV_c4qxbCRJn67tpoLxzu0KsNDU5qA/s1600/Screenshot+of+_Turtle+Art+Activity__1.png" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="150" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjpT16fn9stbycrGlmVgeEByJ7BllcTkOHrSF_LrpkH5mBVt59pqxljc3qhAr2cQ6xkC8l5N5k6MEiCCAOSOIDNUbAtRLyymoK15948YFMnGV_c4qxbCRJn67tpoLxzu0KsNDU5qA/s200/Screenshot+of+_Turtle+Art+Activity__1.png" width="200" /></a></div>
<div style="text-align: center;">
Galton Box in Turtle Blocks <a href="http://wiki.sugarlabs.org/go/File:Turtle_Art_Activity_galton_path.ta">Source</a></div>
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 </div>
Challenges: 
<ul>
<li>At the moment the balls have an equal chance of going left and right. What happens if you change it? Why?</li>
<li>Change the number of rows. What happens? Why?</li>
<li>What is the relationship between this and a similar experiment in coin tossing <a href="http://tonyforster.blogspot.com.au/2009/12/turtle-random-v2.html">Turtle art</a> , <a href="http://rupert.id.au/schoolgamemaker/samples3/">Game Maker</a> ?</li>
</ul></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/3303748224871229307/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=3303748224871229307' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3303748224871229307'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3303748224871229307'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2012/06/galton-box.html' title='Galton Box'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjggLK1hSkWB4E_nqDAeDxyZV4HpSNAGk0-1jX5W2bqcBn-7R_3i1_LL3aGDjvsDKVauK44zLsvjQd2x4j604Lg5PNJSxmvn8CPIdi_x0JDNuUo4JYkNPnjfPWg-6lE_G5MjTBxCg/s72-c/galton.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-8597318168292376954</id><published>2012-02-16T00:41:00.002+11:00</published><updated>2012-03-09T20:10:28.017+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Antarctica"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="XO"/><title type='text'>XO laptop in Antarctica</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgadGP9ErfYVkhJpiaXff4aqHHmQFlxyWDqx6SlX5azDe0lAdXe7rfLuIQTJlkvrfCoocIpNLvNKx4j462OcIzR6BFMCohybNpHTrIxA0Ujej9LNz1b5xFlTMsMx2n-IWPbBriHvw/s1600/IMG_4663.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 318px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgadGP9ErfYVkhJpiaXff4aqHHmQFlxyWDqx6SlX5azDe0lAdXe7rfLuIQTJlkvrfCoocIpNLvNKx4j462OcIzR6BFMCohybNpHTrIxA0Ujej9LNz1b5xFlTMsMx2n-IWPbBriHvw/s320/IMG_4663.JPG" alt="" id="BLOGGER_PHOTO_ID_5709357620381358818" border="0" /></a> The laptop was on holidays. Its most southerly point was 68°12’S 69°28’W This photo was taken at Orne Harbour 64˚37’S 62˚32’W <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2JgGAnbAfrYFyABfkSZoqqphWrD-G7iuJ7uSv1ktRacBQ6NoXD6xqagpmN6OBd2jthf40WVqX-tPUft865VV0UfNaM6ZkeW3SsJuYSM4AGtPj0Mg1UPdTcoUBFSxIBQKz2nfCQw/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 134px; height: 200px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh2JgGAnbAfrYFyABfkSZoqqphWrD-G7iuJ7uSv1ktRacBQ6NoXD6xqagpmN6OBd2jthf40WVqX-tPUft865VV0UfNaM6ZkeW3SsJuYSM4AGtPj0Mg1UPdTcoUBFSxIBQKz2nfCQw/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5717821865106836322" border="0" /></a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/8597318168292376954/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=8597318168292376954' title='3 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8597318168292376954'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8597318168292376954'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2012/02/xo-laptop-in-antarctica.html' title='XO laptop in Antarctica'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgadGP9ErfYVkhJpiaXff4aqHHmQFlxyWDqx6SlX5azDe0lAdXe7rfLuIQTJlkvrfCoocIpNLvNKx4j462OcIzR6BFMCohybNpHTrIxA0Ujej9LNz1b5xFlTMsMx2n-IWPbBriHvw/s72-c/IMG_4663.JPG" height="72" width="72"/><thr:total>3</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-8224245914854437218</id><published>2012-01-24T16:01:00.004+11:00</published><updated>2012-01-24T18:45:21.124+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Lego"/><category scheme="http://www.blogger.com/atom/ns#" term="programming"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><category scheme="http://www.blogger.com/atom/ns#" term="Wedo"/><title type='text'>Wedo plugin for Turtle Art</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRemP0PV9Emf-MU2wcRGOqun7Pe_sBRvJ50OWpCAheGqS2e3VwCfcDyvwmCpW3lq88hmvbkr0sGBh5p0tedGrKEhoUlC-ak0GjWjDELVVeVUJOEE3OTak7AqjijXqq4S_Rx44Rxw/s1600/Screenshot+of+wedo.png"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRemP0PV9Emf-MU2wcRGOqun7Pe_sBRvJ50OWpCAheGqS2e3VwCfcDyvwmCpW3lq88hmvbkr0sGBh5p0tedGrKEhoUlC-ak0GjWjDELVVeVUJOEE3OTak7AqjijXqq4S_Rx44Rxw/s320/Screenshot+of+wedo.png" alt="" id="BLOGGER_PHOTO_ID_5701061776849337970" border="0" /></a> <a href="http://www.box.com/s/hnqixv43etmffm2l6jy3">Download here </a> a plugin for TurtleBlocks V131 (tested on OS880 Sugar 0.94) . It is a rework of a project by I.T. Daniher which has been dormant since March 2011. <a href="http://lists.sugarlabs.org/archive/iaep/2011-March/012715.html">Here</a> and <a href="https://github.com/itdaniher/WeDoMore">here</a>. Download the file and unzip it, copy wedo-plugin to the plugins directory of Turtle Blocks (/home/olpc/Activities/TurtleArt.activity/plugins). Known problems: Turtle Blocks will not start unless a Wedo is connected The distance sensor gives bad values if the motor is running</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/8224245914854437218/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=8224245914854437218' title='1 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8224245914854437218'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8224245914854437218'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2012/01/wedo-plugin-for-turtle-art.html' title='Wedo plugin for Turtle Art'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhRemP0PV9Emf-MU2wcRGOqun7Pe_sBRvJ50OWpCAheGqS2e3VwCfcDyvwmCpW3lq88hmvbkr0sGBh5p0tedGrKEhoUlC-ak0GjWjDELVVeVUJOEE3OTak7AqjijXqq4S_Rx44Rxw/s72-c/Screenshot+of+wedo.png" height="72" width="72"/><thr:total>1</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-3581859025759043391</id><published>2012-01-21T19:43:00.025+11:00</published><updated>2012-01-23T06:13:27.168+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Arduino"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="programming"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><title type='text'>Arduino and the XO laptop</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGzghPbEud0HFXz6t6on5z2EEWYtVjEJqFO8xx5zq__qiRrvopIT4fKa_g5ht7i97LtbNl3ux91bGX1FJY6AM1a_vFZ9-TjkBAT0bCRiLbEAye-lOCTWEpFZHiGGALnBcRcv3B-g/s1600/DSCN0342.JPG.jpe"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 180px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGzghPbEud0HFXz6t6on5z2EEWYtVjEJqFO8xx5zq__qiRrvopIT4fKa_g5ht7i97LtbNl3ux91bGX1FJY6AM1a_vFZ9-TjkBAT0bCRiLbEAye-lOCTWEpFZHiGGALnBcRcv3B-g/s320/DSCN0342.JPG.jpe" alt="" id="BLOGGER_PHOTO_ID_5700208249432264626" border="0" /></a> The Freetronics <a href="http://www.freetronics.com/pages/leostick-quickstart-guide">Leostick</a> is a low cost Arduino board. (It is presumed to be low cost, it was cheap enough to place into the satchels of the attendees of <a href="http://www.linux.conf.au/">LCA2012</a>.) The XO-1.5 already has 2 channel analogue input, an Arduino board can add a lot of extra input and output channels. This could facilitate a number of low cost science and robotics experiments in schools, experiments at a cost suitable for developed and even developing countries. <a href="http://cdn.shopify.com/s/files/1/0045/8932/files/Freetronics-LeoStick-front-label-68_9x28_9-mm-002_large.png?100836"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 480px; height: 198px;" src="http://cdn.shopify.com/s/files/1/0045/8932/files/Freetronics-LeoStick-front-label-68_9x28_9-mm-002_large.png?100836" alt="" border="0" /></a> There are a number of ways such a board could be used:<ul><li>from the Arduino IDE </li><li>from TurtleArt, Firmata running on the Arduino </li></ul>The second version is probably the most practical for classroom use. Once the Leosticks are loaded with Firmata (and this could even be at the factory) all that is requited is TurtleArt drag and drop programming. Installing the Arduino IDE onto a XO-1.5 laptop (OS880) In terminal enter the following sudo yum install arduino This installs an older version (0021), more importantly it installs all the dependencies including Java and avr-gcc. It is a 60MB download which expands to 200MB of storage, be warned it uses up a lot of precious space. The IDE can be started from the Gnome menu or with the command arduino but it does not have the permissions to see the Arduino board on the USB serial port so start it as root (<a href="http://lists.laptop.org/pipermail/devel/2012-January/034062.html">maybe why</a>) sudo arduino The IDE can then be upgraded to version 1.0. This is the version recommended for the Leostick. Download version1.0 from <a href="http://www.arduino.cc/en/Main/Software">http://www.arduino.cc/en/Main/Software</a> The file arduino-1.0-linux.tgz uncompresses with the Gnome archive manager. Uncompress it to a convenient location, if for example if you uncompress it to Documents, you will find a directory arduino-1.0 in this directory. You now have 2 versions of the program, 1.0 (at /home/olpc/Documents/arduino-1.0 ) and 0021 (with components at /usr/share/doc/arduino-0021 and /usr/bin). The later versions 1.0 uses the dependencies installed with the earlier one 0021. As described at <a href="http://www.freetronics.com/pages/leostick-quickstart-guide">http://www.freetronics.com/pages/leostick-quickstart-guide</a> uncomment the following lines in /home/olpc/Documents/arduino-1.0/hardware/arduino/boards.txt (or in version 0021 you would need to add them) leonardo.name=Arduino Leonardo leonardo.upload.protocol=arduino leonardo.upload.maximum_size=28672 leonardo.upload.speed=1200 leonardo.bootloader.low_fuses=0xde leonardo.bootloader.high_fuses=0xd8 leonardo.bootloader.extended_fuses=0xcb leonardo.bootloader.path=diskloader leonardo.bootloader.file=DiskLoader-Leonardo.hex leonardo.bootloader.unlock_bits=0x3F leonardo.bootloader.lock_bits=0x2F leonardo.build.mcu=atmega32u4 leonardo.build.f_cpu=16000000L leonardo.build.core=arduino leonardo.build.variant=leonardo Launch the Arduino IDE (sudo /home/olpc/Documents/arduino-1.0/arduino), and select Tools &gt; Board &gt; Arduino Leonardo. to select the Leonardo hardware select Tools &gt; Serial Port a new device appears with Leostick plugged in, dev/ttyACM0, select it. You can now upload example programs, eg blink, to the Leostick. NOTE: this will overwrite the program that came with your Leostick that plays a tune, watch <a href="http://forum.freetronics.com/viewtopic.php?f=27&amp;t=167">http://forum.freetronics.com/viewtopic.php?f=27&amp;t=167</a> for the original program Controlling the Arduino with Turtle Art Load Firmata software into the Leostick, this can be done on an OLPC, another Linux PC or Windows. Once this is done the Leostick can be used as a I/O expander for Turtle Block drag and drop programming. No Terminal or Gnome work would be needed. <a href="http://tonyforster.blogspot.com/2010/10/arduino-fork-of-turtle-art.html">http://tonyforster.blogspot.com/2010/10/arduino-fork-of-turtle-art.html</a> The version <a href="http://www.box.com/s/z2k281qcdfx76tfojmy1">here</a> works for older Arduino boards on Sugar 0.88 It needs patching at TurtleArtActivity.py, line 834 as described in the link above. The baud rates of Turtle Art and Firmata need to be patched. Sugar 0.88 (Fedora 11) recognises an older Arduino board as as serial device but not the Leostick. Later Arduino boards are dev/ttyACM0 <a href="http://www.box.com/shared/bsf8tmj6al">This version</a> is hard coded to dev/ttyACM0, that means it only works the first time the Leostick is plugged in and not at all for older Arduino boards. It is patched and works on Sugar 0.94. The quick and dirty patches are: Turtleartactivity line 835 self.palette_buttons[i].set_tooltip('thing') line 868 commented out # palette_toolbar_button.set_expanded(True) serialposix.py line 273 # self.fd = os.open(self.portstr, os.O_RDWR|os.O_NOCTTY|os.O_NONBLOCK) self.fd = os.open('/dev/ttyACM0', os.O_RDWR|os.O_NOCTTY|os.O_NONBLOCK) see also: <a href="http://tonyforster.blogspot.com/2010/10/turtle-arduino-display-inputs.html">http://tonyforster.blogspot.com/2010/10/turtle-arduino-display-inputs.html </a><a href="http://tonyforster.blogspot.com/2010/10/turtle-arduino-digital-write.html">http://tonyforster.blogspot.com/2010/10/turtle-arduino-digital-write.html</a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/3581859025759043391/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=3581859025759043391' title='6 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3581859025759043391'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3581859025759043391'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2012/01/arduino-and-xo-laptop.html' title='Arduino and the XO laptop'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiGzghPbEud0HFXz6t6on5z2EEWYtVjEJqFO8xx5zq__qiRrvopIT4fKa_g5ht7i97LtbNl3ux91bGX1FJY6AM1a_vFZ9-TjkBAT0bCRiLbEAye-lOCTWEpFZHiGGALnBcRcv3B-g/s72-c/DSCN0342.JPG.jpe" height="72" width="72"/><thr:total>6</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-3739518548000532652</id><published>2011-11-09T15:07:00.006+11:00</published><updated>2011-11-09T15:26:24.332+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Turtle checksums</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_X4VvXmEUTlzdqcXcMZNZH5q-_qRtg73FdiOLItE_vE-_PFUmmoeDPGNHGS2SVMSDTy9HLfMA67uU0RaeDOeO9jC1dd8Ov5FtUC9UNy3bm47dRLPk_6NksQ5TCWEQM1cposYspQ/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 319px; height: 125px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_X4VvXmEUTlzdqcXcMZNZH5q-_qRtg73FdiOLItE_vE-_PFUmmoeDPGNHGS2SVMSDTy9HLfMA67uU0RaeDOeO9jC1dd8Ov5FtUC9UNy3bm47dRLPk_6NksQ5TCWEQM1cposYspQ/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5672843542828224562" border="0" /></a> Here is a Turtle Art program that calculates the checksum of a South American 7 digit identity number. <a href="http://wiki.sugarlabs.org/images/c/c1/Checksum.ta">Source</a>. You can get the <a href="http://lists.sugarlabs.org/archive/iaep/attachments/20111108/06e79a16/attachment-0002.xls">algorithm as a spreadsheet </a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWo7_9lnYkFVzdq2W_5Gn7LAJvxcYxbnnW8yc7jD1zPYcb2FrcpERLPggBXygPI8mfBaM3pZpZ5zjWr3iP04-FniInLeFEmAHmhH383mez3kPahpOqBrcZwit5WatA7myAf9e4FQ/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 249px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiWo7_9lnYkFVzdq2W_5Gn7LAJvxcYxbnnW8yc7jD1zPYcb2FrcpERLPggBXygPI8mfBaM3pZpZ5zjWr3iP04-FniInLeFEmAHmhH383mez3kPahpOqBrcZwit5WatA7myAf9e4FQ/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5672843896306049426" border="0" /></a>Challenges: How many ID numbers share a checksum? Find 2 ID numbers with the same checksum, not by trial and error The 'key' is 2987634, what restrictions are there on the key that could be used? What is the effect of having the digit 0 in the key?</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/3739518548000532652/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=3739518548000532652' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3739518548000532652'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3739518548000532652'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/11/turtle-checksums.html' title='Turtle checksums'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi_X4VvXmEUTlzdqcXcMZNZH5q-_qRtg73FdiOLItE_vE-_PFUmmoeDPGNHGS2SVMSDTy9HLfMA67uU0RaeDOeO9jC1dd8Ov5FtUC9UNy3bm47dRLPk_6NksQ5TCWEQM1cposYspQ/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-4988088163797119262</id><published>2011-11-05T17:08:00.005+11:00</published><updated>2011-11-07T07:01:54.973+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Python"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>RGB colour addition</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhx8U6vyPJqCxx0zXNIfxCWuX_olNVkhS8c9aDMQyOAAgsKhVK0vVXFzHgkDmfM58uQR1CynRDCkl8jTnU7_e15Qt3bRuYTDlXBb_T75MYO0hx0jB5zU9gSKr1YjvwbSd7yx0XMBw/s1600/Screenshot+of+"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhx8U6vyPJqCxx0zXNIfxCWuX_olNVkhS8c9aDMQyOAAgsKhVK0vVXFzHgkDmfM58uQR1CynRDCkl8jTnU7_e15Qt3bRuYTDlXBb_T75MYO0hx0jB5zU9gSKr1YjvwbSd7yx0XMBw/s320/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5671390013519948626" border="0" /></a> <a href="http://wiki.sugarlabs.org/go/File:Turtle_Art_rgb.ta">source</a> Demonstrates colour addition using Turtle Blocks Challenges: vary the brightness of the colour circles, you could use the keyboard</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/4988088163797119262/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=4988088163797119262' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/4988088163797119262'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/4988088163797119262'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/11/rgb-colour-addition.html' title='RGB colour addition'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhx8U6vyPJqCxx0zXNIfxCWuX_olNVkhS8c9aDMQyOAAgsKhVK0vVXFzHgkDmfM58uQR1CynRDCkl8jTnU7_e15Qt3bRuYTDlXBb_T75MYO0hx0jB5zU9gSKr1YjvwbSd7yx0XMBw/s72-c/Screenshot+of+" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-6969169376777448208</id><published>2011-10-09T13:59:00.007+11:00</published><updated>2011-10-09T14:28:30.729+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>XO-1.75 seismograph</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXPvhE7FSzCPGtPzctH_sOtP4yfHGDdHRlOeNOvoGRy7A5JBCzW6Qk3NrLbppIOtxJ5sqmKSXMVumPgU8utXiMCIG6eHVXoZEv6xT9BhLRbxB51XulgdEIMRprUFWGhfBKKvEeGA/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 215px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXPvhE7FSzCPGtPzctH_sOtP4yfHGDdHRlOeNOvoGRy7A5JBCzW6Qk3NrLbppIOtxJ5sqmKSXMVumPgU8utXiMCIG6eHVXoZEv6xT9BhLRbxB51XulgdEIMRprUFWGhfBKKvEeGA/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5661322045819091570" border="0" /></a>A seismograph program which uses the accelerometer of the OLPC XO-1.75 laptop The x,y,z accelerometer readings are saved in boxes x,y,z. Action 1 computes long term averages for these readings, (boxes a,b,c), 5% of the current reading is added to 95% of the long term average to compute a new long term average. Action 2 determines a threshold of random noise which is ignored. It sums the squares of the deviation from average (x-a)^2 + (y-b)^2 + (z-c)^2 . If this figure exceeds 10, the screen is turned red to indicate that an event is occuring. Action 3 prints the sum of the squares of the deviations and the x,y,z deviations. <a href="http://wiki.sugarlabs.org/images/6/62/Turtle_Art_Activity_seismo.ta">Project source</a> Challenges: <ul><li>When an event occurs, graph the 3 channels (<a href="http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors#Graphing_the_output">a</a>) </li><li>Save the 3 channels events with a time stamp for exporting into a spreadsheet (<a href="http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors#Importing_Logged_Data_into_other_Activities">b</a>), (<a href="http://tonyforster.blogspot.com/2009/02/using-insert-function-block-in.html">c</a>) </li><li>Set up a network of laptops, an event is considered to have occured if all register it. (<a href="http://wiki.sugarlabs.org/go/Activities/TurtleArt/Using_Turtle_Art_Sensors#Remote_door_bell">Use turtle position to share data</a>) </li></ul></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/6969169376777448208/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=6969169376777448208' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/6969169376777448208'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/6969169376777448208'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/10/xo-175-seismograph.html' title='XO-1.75 seismograph'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXPvhE7FSzCPGtPzctH_sOtP4yfHGDdHRlOeNOvoGRy7A5JBCzW6Qk3NrLbppIOtxJ5sqmKSXMVumPgU8utXiMCIG6eHVXoZEv6xT9BhLRbxB51XulgdEIMRprUFWGhfBKKvEeGA/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-3461451169773756877</id><published>2011-08-23T16:36:00.004+10:00</published><updated>2011-08-31T13:19:28.890+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Python"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>XO-1.75 accelerometer</title><content type='html'>
<a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjv0SecPKCRH_c0KJdOmJuLtKIfP9BcazYoGccwCNsQSk7xpFsQTSTyCSMkZeENqhkNtrHqylGri8i67SMpvKh_i3VL6S_i8_Rx-rN0gs5Vkm9Teex03L6yzT5SxxS9WGkSHpu6Kw/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 239px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjv0SecPKCRH_c0KJdOmJuLtKIfP9BcazYoGccwCNsQSk7xpFsQTSTyCSMkZeENqhkNtrHqylGri8i67SMpvKh_i3VL6S_i8_Rx-rN0gs5Vkm9Teex03L6yzT5SxxS9WGkSHpu6Kw/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5643937936133052898" border="0" /></a>A turtle spirit level or plumb bob.
 
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1yw_atHCBKsbbQHVkRa0omDFptg11YfdE2k5GXUIerg4mpNXd3mndyBaLv9SJldRUeLoCUS5In-wwPiOEMiHPuImSu_SsKv-3ea-IAley_vTSXOafpFblW9Yn3hsE6uU2XgPj5A/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 254px; height: 205px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1yw_atHCBKsbbQHVkRa0omDFptg11YfdE2k5GXUIerg4mpNXd3mndyBaLv9SJldRUeLoCUS5In-wwPiOEMiHPuImSu_SsKv-3ea-IAley_vTSXOafpFblW9Yn3hsE6uU2XgPj5A/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5643941147539299186" border="0" /></a>The 'Acceleration' block pushes the acceleration for the x,y,z axis onto the heap, this includes gravity, resolved into these 3 components. The artan of the x and y components is the angle of the line pointing towards the lowest part of the screen.
 
 <a href="http://wiki.sugarlabs.org/go/File:Turtle_Art_spirit_level.ta">Source</a>
 
 An alternate solution:
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikSUuiUlKCIOO-IvJKdTu-37XxUXkRLxfnN2kZvn-3AqDf3u1PARSFKX8fzVLB99IGO3J6sVSRHZyOGxmswi6ekTQq4yD-zydSHukDdMdOruXZJREX-4MWXGPskkPtVOPDXh_DzQ/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 186px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEikSUuiUlKCIOO-IvJKdTu-37XxUXkRLxfnN2kZvn-3AqDf3u1PARSFKX8fzVLB99IGO3J6sVSRHZyOGxmswi6ekTQq4yD-zydSHukDdMdOruXZJREX-4MWXGPskkPtVOPDXh_DzQ/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5646854327939936594" border="0" /></a>
</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/3461451169773756877/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=3461451169773756877' title='4 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3461451169773756877'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3461451169773756877'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/08/xo-175-accelerometer.html' title='XO-1.75 accelerometer'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjv0SecPKCRH_c0KJdOmJuLtKIfP9BcazYoGccwCNsQSk7xpFsQTSTyCSMkZeENqhkNtrHqylGri8i67SMpvKh_i3VL6S_i8_Rx-rN0gs5Vkm9Teex03L6yzT5SxxS9WGkSHpu6Kw/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>4</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-3124679184893773029</id><published>2011-07-31T12:01:00.003+10:00</published><updated>2011-08-02T12:36:20.494+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="maths"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="Tetun"/><category scheme="http://www.blogger.com/atom/ns#" term="Timor"/><title type='text'>East Timor continued, video</title><content type='html'><iframe src="http://www.youtube.com/embed/75-J1Dr8QIg" allowfullscreen="" frameborder="0" height="349" width="425"></iframe> (10 minutes) Or see the short version (3 minutes) <a href="http://www.youtube.com/watch?v=1C6Ru1hpDjk">http://www.youtube.com/watch?v=1C6Ru1hpDjk</a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/3124679184893773029/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=3124679184893773029' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3124679184893773029'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3124679184893773029'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/07/east-timor-continued-video.html' title='East Timor continued, video'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://img.youtube.com/vi/75-J1Dr8QIg/default.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-924811680824391424</id><published>2011-07-20T15:33:00.011+10:00</published><updated>2011-07-21T09:31:26.927+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="Timor"/><title type='text'>Timor reflections</title><content type='html'>Reflections on the East Timor visit The purpose of this visit was to expand the use of the laptops. The original training had concentrated on developing computer skills. This meant that the computers were being used mainly for 'office' skills and had limited use. The goals, as understood before the visit, were to <ul><li>increase the relevance to the curriculum, particularly maths</li><li>increase the use as a more creative tool</li></ul>To this end, materials were developed for <a href="http://www.seaton-olpc-ug.org/?q=node/241">maths</a> and more <a href="http://www.seaton-olpc-ug.org/?q=node/243">creative use</a>. Creating narratives We are told that kids are not good at creating narratives or imaginative writing. They tend to respond only with yes/no answers. When asked to role play, they say "they made me change my name" or when asked questions they have difficulty answering in role and answer as self. If shown a cartoon of farm animals they are all called ‘toy’, not ‘pig’ or ‘horse’ (in Tetun), kids are reluctant to make ‘oink’ and ‘neigh’ noises etc. We observed kids in prep doing imaginative play with Lego in free play time. There is also a rich Timorese oral history of poetry (<a href="http://lianainlorosae.blogspot.com/">eg</a>.). It is reasonable to assume that there is innate creativity but that the types of creativity we are expecting don't match what they are culturally attuned to. (these maybe relevant: <a href="http://www2.brandonu.ca/library/cjns/14.2/dickinson.pdf">Orality in literacy, listening to indigenous writing</a> and <a href="http://www.olsel.catholic.edu.au/_uploads/_ckpg/files/Ninetta%20Santoro_Lit%20Review2006.pdf">Indigenous literacies - a literature review</a>) It is worth noting that kids are not being asked to create in their first language. The language at home is not Tetun, it is one of the <a href="http://en.wikipedia.org/wiki/Languages_of_East_Timor">other languages</a>, possibly Mambai. The languages of instruction, Tetun and Portuguese are likely to be the second and third languages. It is also worth noting that East Timor has only recently recovered from war. Another possible issue, the novel didn’t appear till the 1700‘s and was then criticised as being trivial, maybe creative writing isn’t that easy and we shouldn’t be too surprised at the kids difficulty. Possible remedies, match the task to existing forms of cultural expression. An essay on "what I did in the school holidays" might be a poor match. Get kids to first role play with Lego and then create narrative. Show short videos to catalyse discussion, virtual soccer, video games. Try oral works, music, dance, art as bridging media. We did come prepared with <a href="http://seaton-olpc-ug.org/?q=node/243">some lessons</a> which encouraged creativity but in the end mainly concentrated on math drill with Tuxmath and Gcompris, the creative lessons were too big a leap from the previous laptop use. The original vision for OLPC was for child ownership and saturation in a situation where the education system was broken. The laptop was seen as a <a href="http://wiki.laptop.org/go/OLPC_Principles_and_Basic_information">constructionist</a> tool where unguided exploration would lead to experimentation and creativity. This deployment was neither child owned nor saturated. The school was functioning well and relatively well <a href="https://www.eddataglobal.org/documents/index.cfm/index.cfm?fuseaction=showdir&amp;pubcountry=TP&amp;statusID=3&amp;showtypes=0">resourced</a>. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiapB6TLBZ4Ya2sZ3a12rkUI1yYUDV9Dl0f63B37pkdYaka_BeToTIjFG9wUEpYKQfkYBeYYNd9MFeFOQxew2cFDN_It9hXCEGQV7LGcwT4L4AfY6enbOXKYAok7369ltSZxhwd2w/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 244px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiapB6TLBZ4Ya2sZ3a12rkUI1yYUDV9Dl0f63B37pkdYaka_BeToTIjFG9wUEpYKQfkYBeYYNd9MFeFOQxew2cFDN_It9hXCEGQV7LGcwT4L4AfY6enbOXKYAok7369ltSZxhwd2w/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5631577237805065570" border="0" /></a>Resources in one classroom </div>The feel was not dissimilar to a computer lab in a developed country. Moving from lower order skills to higher order skills (as defined in eg. Bloom's Taxonomy) is not an easy thing to accomplish in a developed world computer lab, why would it be any easier here? 1:1 Laptops will be trialed with 2 kids per laptop in grade 3, previously the larger grade 3 had not used the laptops because sharing laptops was considered impractical. Child ownership The children do not take the laptops home, we discussed the possibility of teachers taking the laptops home. Child ownership can extend further than the hardware, the child can also own their learning. The laptop was 'designed for collaborative, joyful, self-empowered learning'. Tom showed the TED <a href="http://en.wikipedia.org/wiki/Sugata_Mitra">Hole in the Wall</a> talk which I think had a lot of impact. The laptops are shared between classes, each laptop has four 'owners'. The laptops are currently named 1,2,3 ... , we discussed the Chat Activity and allowing kids to rename laptops for a session. We discussed letting the children use Chat in an unstructured, free for all way. I have done that in the past, its chaotic and challenging for the teacher but has strong benefits for literacy. Power Mains power is erratic and had been off most days. There is no classroom recharging, a tangled mess of leads and powerboards is impractical. Flexible furniture arrangement makes permanent power leads impractical. Multiple pendant leads are probably too expensive and still visually difficult. Need to try the laptops' automatic power management out to extend battery time. The laptops are stored in a locked cupboard in the principal’s office. They are charged on a table in the office in a tangled mess of power boards. Laptops stacked ontop of each other could overheat. Charging is hit and miss because of unreliable power. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbNdIDHFVwIsYlXwyfEeYrct3WzzUiamfNBBJ33AttgUOQ8FFJSPjgUaF5bJ0g_uuc5qnMCP7Cc5pQTZNWELhdzkiaLFJrAhcFYe7_SYaeHBFbEQq8dFviGglfKiTzgsbh5x7srg/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 312px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbNdIDHFVwIsYlXwyfEeYrct3WzzUiamfNBBJ33AttgUOQ8FFJSPjgUaF5bJ0g_uuc5qnMCP7Cc5pQTZNWELhdzkiaLFJrAhcFYe7_SYaeHBFbEQq8dFviGglfKiTzgsbh5x7srg/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5631579975984834354" border="0" /></a>Laptop storage </div> <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidWyTkZots4yMIpv6fHxy4WP0pR-0_hUva4IgQMlI-Z4kqtUfJjR803kTPW86TlGxd4BPvwXGVqUQdm0wgbkzApKdXCB2U2KTO1tmZUkEj10obePyf_9LdaseRn-3WWEueO6WH-g/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 237px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEidWyTkZots4yMIpv6fHxy4WP0pR-0_hUva4IgQMlI-Z4kqtUfJjR803kTPW86TlGxd4BPvwXGVqUQdm0wgbkzApKdXCB2U2KTO1tmZUkEj10obePyf_9LdaseRn-3WWEueO6WH-g/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5631313053709765634" border="0" /></a>The desk where all 20 laptops are charged </div> They are not left plugged in overnight, although they would charge if the power comes back on. This is maybe to reduce the risk of theft. Discussed having a lockable timber charging rack built. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIc2m8-qLZL5gi4lIyyBYlmtezLp97Xzpw5VIXZuXADRBL_j5jJqTZc8qqFndhRTu8ACvY-KXsxo-dzFNb5yWkGFS2QzeSKnLKn-fSL-AG7CyagPWc3JRqLd69e2x67C_X0I2BsQ/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 194px; height: 259px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIc2m8-qLZL5gi4lIyyBYlmtezLp97Xzpw5VIXZuXADRBL_j5jJqTZc8qqFndhRTu8ACvY-KXsxo-dzFNb5yWkGFS2QzeSKnLKn-fSL-AG7CyagPWc3JRqLd69e2x67C_X0I2BsQ/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5631310451929783234" border="0" /></a>http://wiki.laptop.org/go/Nepal:_Technical_Details </div> <span onmouseover="ButtonHoverOn(this);" onmouseout="ButtonHoverOff(this);" onmouseup="" onmousedown="CheckFormatting(event);FormatbarButton('richeditorframe', this, 8);ButtonMouseDown(this);" class="" style="display: block;" id="formatbar_CreateLink" title="Link"><img src="http://www.blogger.com/img/blank.gif" alt="Link" class="gl_link" border="0" />Other issues There was one XO1.0. It was software locked. We could not install the intended unsigned software image. We had been told that the Portuguese language was not required because the teachers expected computers to talk English. It turned out that was based on using the computer as an office tool. Once the range of Activities was increased, there was renewed interest in Portuguese. The server The school server opens up other uses, in part because it supports a directory based filesystem. Downloading the <a href="http://tet.wikipedia.org/wiki/P%C3%A1jina_Mahuluk">Tetun language Wikipedia</a> now becomes practical.</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/924811680824391424/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=924811680824391424' title='2 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/924811680824391424'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/924811680824391424'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/07/timor-reflections.html' title='Timor reflections'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiapB6TLBZ4Ya2sZ3a12rkUI1yYUDV9Dl0f63B37pkdYaka_BeToTIjFG9wUEpYKQfkYBeYYNd9MFeFOQxew2cFDN_It9hXCEGQV7LGcwT4L4AfY6enbOXKYAok7369ltSZxhwd2w/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>2</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-1556303566034018976</id><published>2011-07-17T11:44:00.012+10:00</published><updated>2011-07-17T14:21:59.048+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="Tetun"/><category scheme="http://www.blogger.com/atom/ns#" term="Timor"/><title type='text'>East Timor continued</title><content type='html'>Saturday morning We went to Hera market in the morning. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-buRMkIAxJNeM001qnzYhtnj_-bDvnu0prUTSAJv-D_1uNjF-aXNh6QFHfbCsmp-y8rnIcfStmhdxp8K2hHtnoTKA5Stp8yo81wlVeHjKb0ay6lZNPnwU2Hc3iJYwizlzqPLysQ/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 239px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-buRMkIAxJNeM001qnzYhtnj_-bDvnu0prUTSAJv-D_1uNjF-aXNh6QFHfbCsmp-y8rnIcfStmhdxp8K2hHtnoTKA5Stp8yo81wlVeHjKb0ay6lZNPnwU2Hc3iJYwizlzqPLysQ/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630132149601028434" border="0" /></a>Hera Market </div> In the afternoon Tom worked on the server and I tried to learn more Tetun. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-0tw0Zdwz6AQMQkdNxLb7p6ccZsV0c5jHnrWMg6LvGtPqDvH9hBnAz9XlvSHkoKrQjVHqllm-ljUZ5j-ndEUTw70Hc0-QH6w0CbC4p63kJRUlzQ95v5yn6-dwmm5WfPm31YSyEQ/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 234px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh-0tw0Zdwz6AQMQkdNxLb7p6ccZsV0c5jHnrWMg6LvGtPqDvH9hBnAz9XlvSHkoKrQjVHqllm-ljUZ5j-ndEUTw70Hc0-QH6w0CbC4p63kJRUlzQ95v5yn6-dwmm5WfPm31YSyEQ/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630132981801729602" border="0" /></a> The others went to Sidhara village to see a bread making demonstration.. An irrigated community garden has been established there. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvAyth1IL_zxUPOCYVvjV3tnqJGnfDLzjixs8gNuihqXu-NJhGpAexzaA1pyNK2j6aotec76pH6TNqYst0Om257VB4kC0MOhnvHys5L9465VwGnNDz9LKyxIqq-wxFfzaigUEjbw/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 237px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgvAyth1IL_zxUPOCYVvjV3tnqJGnfDLzjixs8gNuihqXu-NJhGpAexzaA1pyNK2j6aotec76pH6TNqYst0Om257VB4kC0MOhnvHys5L9465VwGnNDz9LKyxIqq-wxFfzaigUEjbw/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630132602749144610" border="0" /></a>Bread oven </div> Later we went snorkeling at Caz Bar beach, up to the big statue at Christo Rei, the supermarket and dinner at a restaurant on the beach. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPBZO3cCQv44OTQhOYB2fjH1M-zlqkNUpQTzmHTAb_1jVgKzNIqeQxM_6EUvpz7hwt5gAeQiHoj3gntmaQm1OPUfxhYvIG4N2M8xXi0hu1D8D7vOsBAQDZe_wtIQKHoXOuvV3gSg/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 238px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPBZO3cCQv44OTQhOYB2fjH1M-zlqkNUpQTzmHTAb_1jVgKzNIqeQxM_6EUvpz7hwt5gAeQiHoj3gntmaQm1OPUfxhYvIG4N2M8xXi0hu1D8D7vOsBAQDZe_wtIQKHoXOuvV3gSg/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630133491150188130" border="0" /></a> <div style="text-align: center;">Caz Bar beach, Dili <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiO3HXmsgoB0DDh-3gG-Tbieanr2ojpULcxvXsPUdGEoOqRH-RvOJSX5o-kNUxrwOuKJCy_9KeHbvJz9tbjzxht3pCCjoMD7kP6AlGjUB_AKnMy5yeOexYH_l_b_pfaaioIHPVPA/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 239px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgiO3HXmsgoB0DDh-3gG-Tbieanr2ojpULcxvXsPUdGEoOqRH-RvOJSX5o-kNUxrwOuKJCy_9KeHbvJz9tbjzxht3pCCjoMD7kP6AlGjUB_AKnMy5yeOexYH_l_b_pfaaioIHPVPA/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630133940066265346" border="0" /></a>Christu Rei </div> The power went off at sunset and didn’t come back for 24 hours. Sunday morning Power still off. Up to the school to pick up 5 laptops. Ran the generator for an hour or so to cool the refrigerators and charge the laptops. Tom worked on the school server, now working if a config file on the laptops is changed. Carol and I tried out Activity sharing on an Ad Hoc network. Sunday afternoon, church service at Sidara village. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8-X6oG7SQ9QBsbvKJ1suTOL_CI6kGUKjY4c6Zf86efC6hxfkJFozHMCl8KLq8WujeKIPQr-OMN1DZKatE7ozC5yS1xnma72hmqOCkKnbSM6OqYzT2zAxYirxMlblS2BnOTMVdpg/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 241px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi8-X6oG7SQ9QBsbvKJ1suTOL_CI6kGUKjY4c6Zf86efC6hxfkJFozHMCl8KLq8WujeKIPQr-OMN1DZKatE7ozC5yS1xnma72hmqOCkKnbSM6OqYzT2zAxYirxMlblS2BnOTMVdpg/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630134878677444818" border="0" /></a> <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4KL2ciX9v-SztfxOcywqbteD4KtI5IBZffkI_Sz6Nfro0Kx01NMZPjeuA6tZZpK7Aen5xzj159Jln2b3pmURGBuna-Lh1kZ2M2IkFEQ6N2BWwZa8bKyUoYVciXphAr9lNWsY4MA/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 238px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4KL2ciX9v-SztfxOcywqbteD4KtI5IBZffkI_Sz6Nfro0Kx01NMZPjeuA6tZZpK7Aen5xzj159Jln2b3pmURGBuna-Lh1kZ2M2IkFEQ6N2BWwZa8bKyUoYVciXphAr9lNWsY4MA/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630135386751952130" border="0" /></a>Sidara Village </div> Monday morning Tom worked on the server Carol and I worked on activity sharing Up to school to do Gcompris Activity with class 2A <a href="http://www.youtube.com/watch?v=pzL5X-2IR9M">Video</a> Monday afternoon Tom worked on server and I watched <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKa4SLnVZTYn9FUOq4XOVGOIGToiOlx-5o53Ufu3OzsL9BbfcwkfK2oKlsD8q7z2qbgbJs12f3Kzi287ABbnd76V4veagIhDdFRmLrEzYcuH36NEGJbnktC7C48nFHu1aPPl3BkQ/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 241px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKa4SLnVZTYn9FUOq4XOVGOIGToiOlx-5o53Ufu3OzsL9BbfcwkfK2oKlsD8q7z2qbgbJs12f3Kzi287ABbnd76V4veagIhDdFRmLrEzYcuH36NEGJbnktC7C48nFHu1aPPl3BkQ/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630137709369169202" border="0" /></a> <div style="text-align: center;">The server works!! </div> Monday night Into dili and stayed Dayan and Merna Barbossa of WEC. Night soccer match didn't happen because power was off. Tuesday Off to Care this morning, in principle permission to use digitised Care resources on the laptops. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfbI_Gbj6uaNH6yUBkenOgqBoKHe290N20IlhwDnwrjCuGol4RYySfhw0f0Tf_tlt3T38CrW8asaaUTLOcdiGjDyzgNPyLHBdCmhrGILSvhadErs38jaEpVLn2t2BPLwMb-7ZtAA/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 170px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfbI_Gbj6uaNH6yUBkenOgqBoKHe290N20IlhwDnwrjCuGol4RYySfhw0f0Tf_tlt3T38CrW8asaaUTLOcdiGjDyzgNPyLHBdCmhrGILSvhadErs38jaEpVLn2t2BPLwMb-7ZtAA/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5630138174316985666" border="0" /></a>Care Dili </div></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/1556303566034018976/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=1556303566034018976' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/1556303566034018976'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/1556303566034018976'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/07/east-timor-continued.html' title='East Timor continued'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-buRMkIAxJNeM001qnzYhtnj_-bDvnu0prUTSAJv-D_1uNjF-aXNh6QFHfbCsmp-y8rnIcfStmhdxp8K2hHtnoTKA5Stp8yo81wlVeHjKb0ay6lZNPnwU2Hc3iJYwizlzqPLysQ/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-2730372719027890746</id><published>2011-07-16T09:55:00.016+10:00</published><updated>2011-07-16T11:02:33.716+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="Tetun"/><category scheme="http://www.blogger.com/atom/ns#" term="Timor"/><title type='text'>East Timor Laptop Deployment</title><content type='html'>Hera,Timor Leste, (East Timor) 7 July 2011 Thursday Morning <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg9GHpnrXLs2B-xUYxnWZoDGrX0PPtkF7gxm4cpV-3IDdum2f_bEswBoynRM8sWY4q7Q0-PQ-9MQYGsUWE7Jn8SbeMHOkxfv_UWuRkzqwHB6EwsJuowdVDC7AKHpIRnJ04Q9H_7NA/s1600/Untitled.jpg"> </a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgt3C8xASzbNO7sr8ELSbn4xz-4uhzlX_cHuXv1SgdFo1CRR81EQlL9eAQ9nPbZZXsJXvqlK7WlLX-JpE06fAkavN2R8ok6leFFpOfRxtoMZO_tHd6XHIDxfKF78-GGr4BKC7EHHw/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 200px; height: 126px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgt3C8xASzbNO7sr8ELSbn4xz-4uhzlX_cHuXv1SgdFo1CRR81EQlL9eAQ9nPbZZXsJXvqlK7WlLX-JpE06fAkavN2R8ok6leFFpOfRxtoMZO_tHd6XHIDxfKF78-GGr4BKC7EHHw/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629742376836417522" border="0" /></a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjthU_LJOCMnpVdqGH8VSqD4NJ2ioav_ckp8KdxDwvxFhzw14-lkidYegBWosU83658DcGd3Hc4Bp_CocF7a-BPntY3wJpdEYGpjIFhgQdyvg69wyWl3WhUMeOdIqJP5mMLCutT2g/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 200px; height: 148px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjthU_LJOCMnpVdqGH8VSqD4NJ2ioav_ckp8KdxDwvxFhzw14-lkidYegBWosU83658DcGd3Hc4Bp_CocF7a-BPntY3wJpdEYGpjIFhgQdyvg69wyWl3WhUMeOdIqJP5mMLCutT2g/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629740424625786930" border="0" /></a> <div style="text-align: left;">Tom and I arrived in Hera yesterday. We were met by Branca at Dili airport and driven the 40 minutes to Hera. <div style="text-align: center;"><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-5hMbH1eDRzOHyDdFVONpVf_kfrKR6WR-8nSkS0JFF7a94YoUmZPjGcK6hipXY3aZs_9Y_cPeQPuhqxn_G3N0BWqy9JDKATEWHL8jmYED-tsodyfumrYgFz9WF5oGYBNzgeAo7A/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 238px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi-5hMbH1eDRzOHyDdFVONpVf_kfrKR6WR-8nSkS0JFF7a94YoUmZPjGcK6hipXY3aZs_9Y_cPeQPuhqxn_G3N0BWqy9JDKATEWHL8jmYED-tsodyfumrYgFz9WF5oGYBNzgeAo7A/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629734325416688098" border="0" /></a>Landing at Dili airport </div></div> Timor Leste is an island nation 1½ hours northwest of Australia. Originally a Portuguese colony, they declared independence in 1975 and were then were occupied by Indonesia. A bitter 25 year guerrilla war followed, culminating in independence in 1999. The nation was left with nearly all the infrastructure destroyed . Further unrest occurred in 2006. Timor Leste is now working to reestablish itself after this difficult past. The population speaks a large number of local dialects, Tetun (the Tetun Dili dialect) is the lingua franca, and lesser amounts of Portuguese, English and Bahasa Indonesia. The two official languages are Portuguese and Tetun. Schooling is in both Portuguese and Tetun. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfJKi6jGPe-h8W9FvmBb81Uui8waajFoTWpbYo0-DydbCf-B8ai2mk65NPzcplHVXfcdDJ2ZDgzOOUPwtY2hcVexIZ0CmDqfimJdGSC_ZB3TSGKMRiyb0FDOF957PqzCeBJGsbcw/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 238px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfJKi6jGPe-h8W9FvmBb81Uui8waajFoTWpbYo0-DydbCf-B8ai2mk65NPzcplHVXfcdDJ2ZDgzOOUPwtY2hcVexIZ0CmDqfimJdGSC_ZB3TSGKMRiyb0FDOF957PqzCeBJGsbcw/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629734812331668226" border="0" /></a>Kids Ark School, Hera, Timor Leste </div> The <a href="http://www.kidsarktimor.org/page/Home">Kid’s Ark school</a> is a P-4 school founded by Brazilian missionaries. It was given 20 OLPC XO1.5 laptops by the <a href="http://www.seaton-olpc-ug.org/">Seaton OLPC group</a> in July 2010. One year later, Tom and I returned to evaluate progress and provide additional teacher training. Two principles of the OLPC program are saturation (all primary school students in a region get laptops) and child ownership (the children get to take their laptops home). The Hera deployment is neither saturated nor take home. It is not a saturated deployment because of lack of funding. It was not made a take home deployment because of concerns that this was incompatible with a hierarchical society with different understandings of private ownership. The possibility of negotiating this with village elders has not been explored. The main challenge facing us was to increase the usage of the laptops. The laptops are only being used for a few hours a week. They were enthusiastically adopted a year ago, the acquisition of computer skills was highly valued but now their feeling is that they had ‘done’ everything that could be done with the computer. One strategy identified was to use the laptops more creatively, rather for rote type tasks. A second was to identify linkages between the laptops and the curriculum. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivo_IMDzCCwCEiFzmaC59ORQjKYgDi-TPfRgF4W_GWIsftijcn6RchVprnTsAmqstNYQv-lxNLInspgjlNVOyk3D8ZZLXfHf7y0Bw_cl76D6gKwlmAq4zm2Xfp5OoPHN9X7iZI7w/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 222px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEivo_IMDzCCwCEiFzmaC59ORQjKYgDi-TPfRgF4W_GWIsftijcn6RchVprnTsAmqstNYQv-lxNLInspgjlNVOyk3D8ZZLXfHf7y0Bw_cl76D6gKwlmAq4zm2Xfp5OoPHN9X7iZI7w/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629735324963660498" border="0" /></a>Teacher's guide, 1st grade, in Portuguese and Tetun </div> Thursday Afternoon In the morning we re-flashed the laptops and installed some extra activities. In the afternoon we did training of 10 mainly Tetun speaking teachers. I wasn’t much use there with my lack of Tetun language but Tom and Carol did a great job. First we did an activity inserting photos into a word processor document to <a href="http://www.seaton-olpc-ug.org/?q=node/243">create a personal profile</a>. Then we used the Tux Math drill activity. Finally we showed <a href="http://tet.wikipedia.org/wiki/P%C3%A1jina_Mahuluk">Wikipedia in Tetun</a> and discussed the possibilities. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgqoAwz-18y64hE740dl5rzxOM2IcwfJLhBnZbtQAGQfAVYS6fpP0Ao3nS0D9m8AyXHz6rTEjlyoRVQsMmWGHpd7gDJf6zveCrLnnBCnccMJfJuFQLOwzsy7GtHXDCPQ3d-jIdFw/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 239px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjgqoAwz-18y64hE740dl5rzxOM2IcwfJLhBnZbtQAGQfAVYS6fpP0Ao3nS0D9m8AyXHz6rTEjlyoRVQsMmWGHpd7gDJf6zveCrLnnBCnccMJfJuFQLOwzsy7GtHXDCPQ3d-jIdFw/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629735840234511922" border="0" /></a>Teaching the teachers </div> Friday A positive sign, two teachers (class 2a and 2b) asked if they could use Tuxmath in their classes. We first did class 2a, that meant a bit of hurried installing of software for the class. Some kids had no idea of how to use the computer, one finger on the mousepad, enter etc. Nevertheless it took only about 20 minutes to get all the kids going well (<a href="http://www.youtube.com/watch?v=PenjqnF3Tag">video</a>). <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSiS_JzltimbWPHNc5tWryE9GQT-1-GoppU6NYSAWr6tuLKxy89dVwoF91bIC4BLp4kOcdtCb5faGHCw1ypn4NtiEqW13XUJ9E1IX5pHZ4M2QfDaRaU6VHzOcQcYWEzLKgDJGS1w/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 320px; height: 220px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhSiS_JzltimbWPHNc5tWryE9GQT-1-GoppU6NYSAWr6tuLKxy89dVwoF91bIC4BLp4kOcdtCb5faGHCw1ypn4NtiEqW13XUJ9E1IX5pHZ4M2QfDaRaU6VHzOcQcYWEzLKgDJGS1w/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629738596756825154" border="0" /></a> Next class 2b. Similar experience to 2a. Even more encouraging, the teacher when shown the Abacus Activity wanted to use it immediately because she could see its curriculum relevance. The kids continued to use this till the laptops batteries ran out, doubling and tripling to a laptop as the batteries progressively failed. <div style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDgEnnkBgRX7xD3b_HtDJ6pc4mMYsE8YIuQ9ozF_KbKu3kuRfDJXCaJqxz6c1oPH2tYkdknPToVzlctZNh3x_8-bF5Zf1CG_0DrV1x3wB6Q2kmMvjiSQW8R12Cf1N50iyfRsu7iw/s1600/Untitled.jpg"><img style="display:block; margin:0px auto 10px; text-align:center;cursor:pointer; cursor:hand;width: 200px; height: 92px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDgEnnkBgRX7xD3b_HtDJ6pc4mMYsE8YIuQ9ozF_KbKu3kuRfDJXCaJqxz6c1oPH2tYkdknPToVzlctZNh3x_8-bF5Zf1CG_0DrV1x3wB6Q2kmMvjiSQW8R12Cf1N50iyfRsu7iw/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5629739306038299266" border="0" /></a>Linking the Abacus Activity to the existing curriculum </div> More to come.</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/2730372719027890746/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=2730372719027890746' title='1 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/2730372719027890746'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/2730372719027890746'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/07/east-timor-laptop-deployment.html' title='East Timor Laptop Deployment'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgt3C8xASzbNO7sr8ELSbn4xz-4uhzlX_cHuXv1SgdFo1CRR81EQlL9eAQ9nPbZZXsJXvqlK7WlLX-JpE06fAkavN2R8ok6leFFpOfRxtoMZO_tHd6XHIDxfKF78-GGr4BKC7EHHw/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>1</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-8026579700257263686</id><published>2011-06-14T16:05:00.007+10:00</published><updated>2011-06-14T17:38:53.818+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="gravity"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Orbital motion</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiL4HBdkFfqBoR63fv5PxTViPI9185QHXQm10ZF8JWZeskErj2HtpLWglMe7pQwX-fmCcHK5PZ-HcRM92-ThjAO3QHJOJA-sw543tFWA3Hc9K3gkqz-aZQykTPBubKBkwUhOUVqhw/s1600/Screenshot+orbital2.png"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiL4HBdkFfqBoR63fv5PxTViPI9185QHXQm10ZF8JWZeskErj2HtpLWglMe7pQwX-fmCcHK5PZ-HcRM92-ThjAO3QHJOJA-sw543tFWA3Hc9K3gkqz-aZQykTPBubKBkwUhOUVqhw/s320/Screenshot+orbital2.png" alt="" id="BLOGGER_PHOTO_ID_5617976235817808610" border="0" /></a> Law of gravity f=G ma mb/r2 a=G ma/r2 ay=a sin(theta) ay=a y/r ay=G ma y/r3 r=(x2+y2)0.5 ax=Gmax/(x2+y2)1.5 ay=Gmay/(x2+y2)1.5 Then for each time step Vx=Vx+ax Vy=Vy+ay x=x+Vx y=y+Vy <a href="http://wiki.sugarlabs.org/images/d/df/Turtle_Art_Activity_"></a><a href="http://wiki.sugarlabs.org/images/d/df/Turtle_Art_Activity_orbital.ta">Source</a> </content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/8026579700257263686/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=8026579700257263686' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8026579700257263686'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8026579700257263686'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/06/orbital-motion.html' title='Orbital motion'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiL4HBdkFfqBoR63fv5PxTViPI9185QHXQm10ZF8JWZeskErj2HtpLWglMe7pQwX-fmCcHK5PZ-HcRM92-ThjAO3QHJOJA-sw543tFWA3Hc9K3gkqz-aZQykTPBubKBkwUhOUVqhw/s72-c/Screenshot+orbital2.png" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-8981145964494650869</id><published>2011-05-14T12:12:00.011+10:00</published><updated>2011-05-14T13:37:18.881+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Graphing pitch and volume</title><content type='html'>Different ways of displaying pitch and (measured a little later) volume using <a href="http://wiki.sugarlabs.org/go/Activities/TurtleArt">TurtleArt</a> Direction = pitch, radius= volume <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzWR4egNxOqetrtxYTPKTjJqjXlMZ_IcUlCrMs3p8FJXAGBF_VWcMxc-II-iGhtc8nDh2FfUjqcHnKP04BetTTT7bLAEXAJOMDuBnglAorYxYATAx5F8xStRUjmbBgkrh2kptSQA/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 150px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzWR4egNxOqetrtxYTPKTjJqjXlMZ_IcUlCrMs3p8FJXAGBF_VWcMxc-II-iGhtc8nDh2FfUjqcHnKP04BetTTT7bLAEXAJOMDuBnglAorYxYATAx5F8xStRUjmbBgkrh2kptSQA/s200/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5606389684036619362" border="0" /></a>with only dots at the end of the line <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnig70ODZmOfbYvo7OHJFrgndTg2tyfZ3gvsDwGBxdfInsnOhIt4D8B2q4QSaVg-8p35wwKVarGsTHWZ_b2iFNYN5zPcYipAgmCqC_wJBCHBDevXABCChVoRcVe8Fl0at1mfVLRg/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 150px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgnig70ODZmOfbYvo7OHJFrgndTg2tyfZ3gvsDwGBxdfInsnOhIt4D8B2q4QSaVg-8p35wwKVarGsTHWZ_b2iFNYN5zPcYipAgmCqC_wJBCHBDevXABCChVoRcVe8Fl0at1mfVLRg/s200/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5606389545942365298" border="0" /></a>colour determined by volume (measured a little later again) <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZg8RUlYgYPgWOFH3La75dyTIV8lMAQDI-cAfQzkxOvRv4nmbQ9r-OZTCp_4jnNsTEbZ2xIh2_3TPJ296UBsOZgVCC-h3cTebFMDeXMkZPBALTHJSTgjUU2hTUOONzgSq1vZQZYw/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 150px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZg8RUlYgYPgWOFH3La75dyTIV8lMAQDI-cAfQzkxOvRv4nmbQ9r-OZTCp_4jnNsTEbZ2xIh2_3TPJ296UBsOZgVCC-h3cTebFMDeXMkZPBALTHJSTgjUU2hTUOONzgSq1vZQZYw/s200/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5606389379273192946" border="0" /></a>x = pitch, y=volume <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6TXvBDXa0-Effh2WFx045TkmaRW7xR5wRKEIIuafQS_fBnuFvCsfCk4A8aQM0ai2N4KfEFEvbjzgLmDeqX2ysoRCMR4B_J_-_D8CxNvPlmZjlKCsVORIqWg5pONYDDY1AmjSV_Q/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 150px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6TXvBDXa0-Effh2WFx045TkmaRW7xR5wRKEIIuafQS_fBnuFvCsfCk4A8aQM0ai2N4KfEFEvbjzgLmDeqX2ysoRCMR4B_J_-_D8CxNvPlmZjlKCsVORIqWg5pONYDDY1AmjSV_Q/s200/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5606389109315211586" border="0" /></a>Challenges: <ul><li>No code is given here, create these graphs</li><li>Make other graphs</li><li>A third variable to graph is number of occurrences of a pitch/volume pair</li><li>Can you get useful information from these graphs? Can you tell speech from music, TV program from advertisment?</li><li>The pitch block only shows the pitch of the loudest component. This is derived from a FFT (Fast Fourier Transform). Can you program a Python block to show all the spectral components and their amplitude? (Look at the source to see how the FFT is done)</li><li>With more than one laptop you can log more data. Can you combine data from multiple laptops and graph it? How will you synchronize the data? </li></ul></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/8981145964494650869/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=8981145964494650869' title='1 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8981145964494650869'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/8981145964494650869'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/05/graphing-pitch-and-volume.html' title='Graphing pitch and volume'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzWR4egNxOqetrtxYTPKTjJqjXlMZ_IcUlCrMs3p8FJXAGBF_VWcMxc-II-iGhtc8nDh2FfUjqcHnKP04BetTTT7bLAEXAJOMDuBnglAorYxYATAx5F8xStRUjmbBgkrh2kptSQA/s72-c/Screenshot+of+" height="72" width="72"/><thr:total>1</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-596761041867053162</id><published>2011-05-09T20:54:00.004+10:00</published><updated>2011-05-09T21:14:20.518+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="Arduino"/><category scheme="http://www.blogger.com/atom/ns#" term="Python"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Turtle Art and USB serial devices</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCb27A4HydGy3K96LF3MoKwOED_JDLihXauqXTycAH3ZkI_XZxiMBSaJgKZC6WGmRZFwRs0wvanOul7WGwk0kO5kt5gSaOohB9bpq9qPHXY5cQ3I173dIMlpO8lcHUgFTz0BWXQQ/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 156px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCb27A4HydGy3K96LF3MoKwOED_JDLihXauqXTycAH3ZkI_XZxiMBSaJgKZC6WGmRZFwRs0wvanOul7WGwk0kO5kt5gSaOohB9bpq9qPHXY5cQ3I173dIMlpO8lcHUgFTz0BWXQQ/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5604668329786831826" border="0" /></a>Using the Python block to interface with a USB serial device (tested with the Arduino) Requires the Pyserial library. The <a href="http://pyserial.sourceforge.net/pyserial.html#installation">recommended install procedure</a> does not work because it requires a developer installation of Python python2.6-dev Instead copy the serial directory <a href="http://www.box.net/shared/bsf8tmj6al">here</a> to the directory home/olpc/Activities/TurtleArt.activity Load the Python block with <a href="http://bugs.sugarlabs.org/attachment/ticket/1949/Pippy%20Activity%20serial.py">this code</a> Tested on an Arduino, the Arduino had a simple <a href="http://bugs.sugarlabs.org/attachment/ticket/1949/incomingbyte.pde">echo program</a> loaded using the Arduino IDE on another computer but this should work with any board with a <a href="http://www.sparkfun.com/datasheets/IC/FT232R_v104.pdf">FTDI FT232R </a>USB serial chip Ideas for controlling devices with the <a href="http://www.sparkfun.com/datasheets/IC/FT232R_v104.pdf">FTDI FT232R </a>USB serial chip <a href="http://www.chinwah-engineering.com/">here</a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/596761041867053162/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=596761041867053162' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/596761041867053162'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/596761041867053162'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/05/turtle-art-usb-serial-devices.html' title='Turtle Art and USB serial devices'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCb27A4HydGy3K96LF3MoKwOED_JDLihXauqXTycAH3ZkI_XZxiMBSaJgKZC6WGmRZFwRs0wvanOul7WGwk0kO5kt5gSaOohB9bpq9qPHXY5cQ3I173dIMlpO8lcHUgFTz0BWXQQ/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-1851410297096048005</id><published>2011-05-08T11:54:00.018+10:00</published><updated>2011-05-08T18:17:47.527+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="calculus"/><category scheme="http://www.blogger.com/atom/ns#" term="maths"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Turtle calculus</title><content type='html'>Its easy to plug in various functions as a graph's gradient in Turtle Art. The resulting graph is the integral of the function used as the gradient. In the below case, the gradient is 1 and its integral is a straight line, f(x)=x <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_bOlPD8pNiAvvgvO4pv3DItWUqpcsLYIWgObfl_dsCoV4Ge8W3xJW_rwbqLROEPaD7MTRUFYQYXdPxERQyKFC7IlrBzUb8fhkR6_HPQKd3CjGccCx11mF7v5fcgpZEfIgqBQ5DA/s1600/Screenshot+of+"> </a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcDFhRfyiO9CW6ulq8jUOzOcgiqUIr0CmyF0SCWl9cS5NMNYC8yXW27ntpEbA20peNkDS2-OqptgiQRJQujtx-6ZIwqtG3HVP_3lp81zGnHmp2tWySHE1yK1U4TB21LnXJw7BPCA/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcDFhRfyiO9CW6ulq8jUOzOcgiqUIr0CmyF0SCWl9cS5NMNYC8yXW27ntpEbA20peNkDS2-OqptgiQRJQujtx-6ZIwqtG3HVP_3lp81zGnHmp2tWySHE1yK1U4TB21LnXJw7BPCA/s320/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5604158794377573490" border="0" /></a> Plug in a linear gradient, -2+x/100, and make a parabola with zero crossings at x=0 and x=400 <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6YYoqj6WyUHZJYpcaDGx4tnnPJwzURwG2OJKxRkB4zG3CspgxszX1-p3m2LChV9RpYAaKL8ZY9mej12nduVtFMAcyaq1DoReXTIPbz04kauY_ozdNe-TsC_4f2Ird9Gf2CFGDDw/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 39px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6YYoqj6WyUHZJYpcaDGx4tnnPJwzURwG2OJKxRkB4zG3CspgxszX1-p3m2LChV9RpYAaKL8ZY9mej12nduVtFMAcyaq1DoReXTIPbz04kauY_ozdNe-TsC_4f2Ird9Gf2CFGDDw/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5604197097543232082" border="0" /></a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_bOlPD8pNiAvvgvO4pv3DItWUqpcsLYIWgObfl_dsCoV4Ge8W3xJW_rwbqLROEPaD7MTRUFYQYXdPxERQyKFC7IlrBzUb8fhkR6_HPQKd3CjGccCx11mF7v5fcgpZEfIgqBQ5DA/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_bOlPD8pNiAvvgvO4pv3DItWUqpcsLYIWgObfl_dsCoV4Ge8W3xJW_rwbqLROEPaD7MTRUFYQYXdPxERQyKFC7IlrBzUb8fhkR6_HPQKd3CjGccCx11mF7v5fcgpZEfIgqBQ5DA/s320/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5604160149838062706" border="0" /></a> A quadratic gradient generates a cubic with zero crossings at x=0 and x=300 <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijA48RACoib_1r4ZHKuwpPcs7LLouS5l6RAUuaiiW7linaKJShMMe0-zNPq451IdMuh8Gv0-_a4M2XzT-LAxXCjJERoMceCguZOJ0Wx3UtVXHZ1DJMlEBWdJTURgVsw_RAaxUn0A/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 30px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijA48RACoib_1r4ZHKuwpPcs7LLouS5l6RAUuaiiW7linaKJShMMe0-zNPq451IdMuh8Gv0-_a4M2XzT-LAxXCjJERoMceCguZOJ0Wx3UtVXHZ1DJMlEBWdJTURgVsw_RAaxUn0A/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5604198978098015922" border="0" /></a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzHYN6Tbn4_YvPvUNxSYFNcN02qb8XA22ZBID6kVO6SoehEx2X6dt5OPLncoFXnlWi12bpnDhwV-GTYQSzSbXdQ4WxD6nL_TN8V3bUU8Sae51Uj6HB29VrpRt-3AFhQ2hAES0Mxw/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgzHYN6Tbn4_YvPvUNxSYFNcN02qb8XA22ZBID6kVO6SoehEx2X6dt5OPLncoFXnlWi12bpnDhwV-GTYQSzSbXdQ4WxD6nL_TN8V3bUU8Sae51Uj6HB29VrpRt-3AFhQ2hAES0Mxw/s320/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5604160405045227202" border="0" /></a>The integral of sin is -cos <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVe1LX_oMl_dHiAr84bwVDTEcaG5d7L8XHYRRaZdtGEhiOaM7cwOQJoSkKfqUo7ErJQGj-OYrbYIHpsK2UN2EipXiR5xbNKLkfy7a7B-zNLzNobgtWRFjkKzVimybNEPGcOBsZUA/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 200px; height: 27px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiVe1LX_oMl_dHiAr84bwVDTEcaG5d7L8XHYRRaZdtGEhiOaM7cwOQJoSkKfqUo7ErJQGj-OYrbYIHpsK2UN2EipXiR5xbNKLkfy7a7B-zNLzNobgtWRFjkKzVimybNEPGcOBsZUA/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5604200035546903826" border="0" /></a>(by the <a href="http://en.wikipedia.org/wiki/Chain_rule">chain rule</a>) <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHkp3z1A5nr4l_MnHSZFdvdid1YxFLFT2wpRfKwgWTlFKhwVWE9VnDMnTPPdlhyphenhyphenG3BVL-UWb2jqAjYH0UrHgZaubKRP7__GHwPXz2D94Fb2Ei6g4n3H54RDH2b4hHdysWrH0gM6g/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjHkp3z1A5nr4l_MnHSZFdvdid1YxFLFT2wpRfKwgWTlFKhwVWE9VnDMnTPPdlhyphenhyphenG3BVL-UWb2jqAjYH0UrHgZaubKRP7__GHwPXz2D94Fb2Ei6g4n3H54RDH2b4hHdysWrH0gM6g/s320/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5604160585529689154" border="0" /></a> making dy/dx =y gives an exponential curve <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVtQhgcLoy9GGYwiC_AsuZnjLfLlJAdQF3SmV83c76bTjsPDZyETf9oyalSWhqrybBfg_5WCN1riHzOYpzxtzOO7KQYZy8hnruEVgygu33elO_2iufJAtIowWNJJR3R_vBYkJXKg/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 106px; height: 37px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVtQhgcLoy9GGYwiC_AsuZnjLfLlJAdQF3SmV83c76bTjsPDZyETf9oyalSWhqrybBfg_5WCN1riHzOYpzxtzOO7KQYZy8hnruEVgygu33elO_2iufJAtIowWNJJR3R_vBYkJXKg/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5604201686609190898" border="0" /></a>but a nonzero value at x=0 is necessary, in this case forward 1 means f(0)=1 starting at 0, f(0)=0 has a solution of a straight line f(x)=0 <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2s1nGu8dbeGr3RvfEOfzndszeTL67q0Y8a7NBwnRrKIfwSdaTTI-rpqF7EBqvDEuTpFrMtuFkcOh_9lUzuZUdTmiWrk85rMKQ9Ni7O5SqPFb4gtBf-cg-XOCrmCRakodTRgsyVA/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 87px; height: 36px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi2s1nGu8dbeGr3RvfEOfzndszeTL67q0Y8a7NBwnRrKIfwSdaTTI-rpqF7EBqvDEuTpFrMtuFkcOh_9lUzuZUdTmiWrk85rMKQ9Ni7O5SqPFb4gtBf-cg-XOCrmCRakodTRgsyVA/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5604202792903677090" border="0" /></a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFgdFvmQB3SAVzegv5jcT2_jEomU3q35s-aAnZQfPuhyphenhyphenP0yVY4AB9RtOMBGTDhEu32r6JzXJw8pNItsz5TV8tWI28I1s15WRzimNCddufJwxXM5bmx7iueklYudr2yfOFcGG3PbA/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFgdFvmQB3SAVzegv5jcT2_jEomU3q35s-aAnZQfPuhyphenhyphenP0yVY4AB9RtOMBGTDhEu32r6JzXJw8pNItsz5TV8tWI28I1s15WRzimNCddufJwxXM5bmx7iueklYudr2yfOFcGG3PbA/s320/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5604160815258105362" border="0" /></a> Challenges Graph for negative x Graph the exponential for f(0)=-1 explain The exponential above is for dy/dx = y/100 what exactly is the formula for the graph? Find more interesting integrals Graph the derivative of a function Iteratively solve d2y/dx2 =-y Explain the offset in the graph of -cos A step size of 1 is used, what error does the step size introduce?</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/1851410297096048005/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=1851410297096048005' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/1851410297096048005'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/1851410297096048005'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/05/turtle-calculus.html' title='Turtle calculus'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjcDFhRfyiO9CW6ulq8jUOzOcgiqUIr0CmyF0SCWl9cS5NMNYC8yXW27ntpEbA20peNkDS2-OqptgiQRJQujtx-6ZIwqtG3HVP_3lp81zGnHmp2tWySHE1yK1U4TB21LnXJw7BPCA/s72-c/Screenshot+of+" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-6694694963603077945</id><published>2011-04-24T17:48:00.011+10:00</published><updated>2011-04-28T10:57:53.389+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="energy"/><category scheme="http://www.blogger.com/atom/ns#" term="microhydro"/><category scheme="http://www.blogger.com/atom/ns#" term="Nepal"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><title type='text'>Nepal Micro Hydro</title><content type='html'>The distribution of the OLPC (One Laptop Per Child) into the developing world including places without mains power or internet, raises the question of appropriate power technologies. A selection of small hydro schemes in Nepal below are particularly interesting in that none have road access. Water wheel grinding cornflour This one below Ghandruk, in the Annapurna region. There are many water mills in the region. <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEYEfHj76v-dt22IJeVcBRJqxfnXFElebVE6IEBfrHOuQDiTsJtdxE8LinJ8xK02VggfKgwAvV3Cu213Q5IDfqxLKALNE5Cg0BcByswXCUiALp5Jo2Od-1CbSDPHz51Qfz6PUX_g/s1600/100_1421.JPG"> </a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVfGsvN09EWosGD4WtFPxNqs3qxndb_0APY8OBe2KurGjdC5SRQsE4lnHzLqWjfopRkPznqXiPKnRe4fVmHWdfgN8G-JtXz8hW2OSIqCObrGibA9jOb3_nEwNa5UyDCVIXSXuOtQ/s1600/100_1382.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVfGsvN09EWosGD4WtFPxNqs3qxndb_0APY8OBe2KurGjdC5SRQsE4lnHzLqWjfopRkPznqXiPKnRe4fVmHWdfgN8G-JtXz8hW2OSIqCObrGibA9jOb3_nEwNa5UyDCVIXSXuOtQ/s320/100_1382.JPG" alt="" id="BLOGGER_PHOTO_ID_5599054243244663330" border="0" /></a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM5piMcw_F40EyyQuagMETiQr-pNTe2B8ta7bOlvDs96NlhB1SZ3gQyFStCfSemC91qgENUxcgSULC3yrgC042FSeZkYngu0dRYtccqVG5RZLZV3zTBq3fcZzwvXNu08SSupDC1Q/s1600/100_1383.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM5piMcw_F40EyyQuagMETiQr-pNTe2B8ta7bOlvDs96NlhB1SZ3gQyFStCfSemC91qgENUxcgSULC3yrgC042FSeZkYngu0dRYtccqVG5RZLZV3zTBq3fcZzwvXNu08SSupDC1Q/s320/100_1383.JPG" alt="" id="BLOGGER_PHOTO_ID_5599054676719384514" border="0" /></a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_a8xjbOVaW65e12O4QF2Ovgx2knDNudicfwKXs_25bjcTebv-4YS990Xk4cVvuIxS5-64zGWSlfKf4yhL03QzUqSTEOb7BfrZTY2Xox1EJ-O84EtEmRT5mLvDRGrHrMWcAySUcA/s1600/100_1391.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_a8xjbOVaW65e12O4QF2Ovgx2knDNudicfwKXs_25bjcTebv-4YS990Xk4cVvuIxS5-64zGWSlfKf4yhL03QzUqSTEOb7BfrZTY2Xox1EJ-O84EtEmRT5mLvDRGrHrMWcAySUcA/s320/100_1391.JPG" alt="" id="BLOGGER_PHOTO_ID_5599054909042435906" border="0" /></a> 1 kW approximately micro hydro Provides power for the tea house at Deurali Pass, near Ghorepani. <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiybosWmJ2oh_0IUCNsPAlAMt9HgLgG8_rpC_q_YSFXvigiFFzZxbFQjoBi0_NsDg1Vaia89RlcRaB0Y3c6bkTVSTY2r6oTssdK-ndUbIukpraDBJG0hNrVwZzgNxJeTu3PrLGOoA/s1600/100_1420.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiybosWmJ2oh_0IUCNsPAlAMt9HgLgG8_rpC_q_YSFXvigiFFzZxbFQjoBi0_NsDg1Vaia89RlcRaB0Y3c6bkTVSTY2r6oTssdK-ndUbIukpraDBJG0hNrVwZzgNxJeTu3PrLGOoA/s320/100_1420.JPG" alt="" id="BLOGGER_PHOTO_ID_5599055597261559714" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCL2lM0ZM8faM9_GlIbGSlAePGpTN1eVTA_UbZMfAMtaglA2FFyLZBJl9d0uYdIaowgyIdTwUGEjwi7a6us4BfpejGEedDD5cihyIKzun0zWoYhGLXNn32DzBuO1ATMUrIF_dmtg/s1600/100_1419.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 240px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgCL2lM0ZM8faM9_GlIbGSlAePGpTN1eVTA_UbZMfAMtaglA2FFyLZBJl9d0uYdIaowgyIdTwUGEjwi7a6us4BfpejGEedDD5cihyIKzun0zWoYhGLXNn32DzBuO1ATMUrIF_dmtg/s320/100_1419.JPG" alt="" id="BLOGGER_PHOTO_ID_5599055391760838946" border="0" /></a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEYEfHj76v-dt22IJeVcBRJqxfnXFElebVE6IEBfrHOuQDiTsJtdxE8LinJ8xK02VggfKgwAvV3Cu213Q5IDfqxLKALNE5Cg0BcByswXCUiALp5Jo2Od-1CbSDPHz51Qfz6PUX_g/s1600/100_1421.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 240px; height: 320px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEYEfHj76v-dt22IJeVcBRJqxfnXFElebVE6IEBfrHOuQDiTsJtdxE8LinJ8xK02VggfKgwAvV3Cu213Q5IDfqxLKALNE5Cg0BcByswXCUiALp5Jo2Od-1CbSDPHz51Qfz6PUX_g/s320/100_1421.JPG" alt="" id="BLOGGER_PHOTO_ID_5599055821783384370" border="0" /></a> 10 kW approximately micro hydro This provides power for the village of Ghandruk. <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwn3HCnRsdVIUsvPN1wYOLHyX67B2tDYg4n2n0x1ES9vNTniCPMPSI5exYO0ZiERdaOehV-nHxmkUJSIGEJBXI-HH44lay9bbfCjxitIxfB57CEfl_i_4YuLG0DbDU6G4N7_8B7A/s1600/100_1394.JPG"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 240px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwn3HCnRsdVIUsvPN1wYOLHyX67B2tDYg4n2n0x1ES9vNTniCPMPSI5exYO0ZiERdaOehV-nHxmkUJSIGEJBXI-HH44lay9bbfCjxitIxfB57CEfl_i_4YuLG0DbDU6G4N7_8B7A/s320/100_1394.JPG" alt="" id="BLOGGER_PHOTO_ID_5599055124853047922" border="0" /></a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh_a8xjbOVaW65e12O4QF2Ovgx2knDNudicfwKXs_25bjcTebv-4YS990Xk4cVvuIxS5-64zGWSlfKf4yhL03QzUqSTEOb7BfrZTY2Xox1EJ-O84EtEmRT5mLvDRGrHrMWcAySUcA/s1600/100_1391.JPG"> </a> <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM5piMcw_F40EyyQuagMETiQr-pNTe2B8ta7bOlvDs96NlhB1SZ3gQyFStCfSemC91qgENUxcgSULC3yrgC042FSeZkYngu0dRYtccqVG5RZLZV3zTBq3fcZzwvXNu08SSupDC1Q/s1600/100_1383.JPG"> </a> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjEYEfHj76v-dt22IJeVcBRJqxfnXFElebVE6IEBfrHOuQDiTsJtdxE8LinJ8xK02VggfKgwAvV3Cu213Q5IDfqxLKALNE5Cg0BcByswXCUiALp5Jo2Od-1CbSDPHz51Qfz6PUX_g/s1600/100_1421.JPG"> </a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/6694694963603077945/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=6694694963603077945' title='2 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/6694694963603077945'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/6694694963603077945'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/04/nepal-micro-hydro.html' title='Nepal Micro Hydro'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgVfGsvN09EWosGD4WtFPxNqs3qxndb_0APY8OBe2KurGjdC5SRQsE4lnHzLqWjfopRkPznqXiPKnRe4fVmHWdfgN8G-JtXz8hW2OSIqCObrGibA9jOb3_nEwNa5UyDCVIXSXuOtQ/s72-c/100_1382.JPG" height="72" width="72"/><thr:total>2</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-7013432253695958650</id><published>2011-04-08T12:11:00.005+10:00</published><updated>2011-05-10T16:05:37.983+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Turtle division drill</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFC-ubGwnTrps1BgxB_ql8FSCGULysYpovU6O6lgP-cr5PmRsK3l-HOgQbA-cgNu4ily6xXB7Xig5wi2s_DFzfCVWAsYJ12fjtvsjNS1qSOLOI64iOXCReE6eflLzWhB9JPFzjmg/s1600/Untitled.jpg"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 320px; height: 97px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFC-ubGwnTrps1BgxB_ql8FSCGULysYpovU6O6lgP-cr5PmRsK3l-HOgQbA-cgNu4ily6xXB7Xig5wi2s_DFzfCVWAsYJ12fjtvsjNS1qSOLOI64iOXCReE6eflLzWhB9JPFzjmg/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5593029891537613762" border="0" /></a><a href="http://wiki.sugarlabs.org/go/File:Turtle_Art_Activity_division_drill.ta">Source</a> Challenge: This could be turned into a 2 player online game. Writing to the screen is shared in a shared session. Add a score display and displace one player left and the other right. Hint: you cannot remotely erase the other player's screen but you can draw a blank rectangle. <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbJWjslirjAT4GvW-nRmkUkO7QhXgtNaXv1x89JSMwF9fm1eEZv6yGO5IE1VjnTdEKq0Eo2BhhIV-y9lL3g_HSoqWod34EuTJRnc_nR7czNcYYgoWHjChg6FaqMXvD_9oGnTpBNQ/s1600/Screenshot+of+"><img style="margin: 0px auto 10px; display: block; text-align: center; cursor: pointer; width: 200px; height: 150px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhbJWjslirjAT4GvW-nRmkUkO7QhXgtNaXv1x89JSMwF9fm1eEZv6yGO5IE1VjnTdEKq0Eo2BhhIV-y9lL3g_HSoqWod34EuTJRnc_nR7czNcYYgoWHjChg6FaqMXvD_9oGnTpBNQ/s200/Screenshot+of+" alt="" id="BLOGGER_PHOTO_ID_5604964528528741730" border="0" /></a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/7013432253695958650/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=7013432253695958650' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/7013432253695958650'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/7013432253695958650'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/04/turtle-division-drill.html' title='Turtle division drill'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiFC-ubGwnTrps1BgxB_ql8FSCGULysYpovU6O6lgP-cr5PmRsK3l-HOgQbA-cgNu4ily6xXB7Xig5wi2s_DFzfCVWAsYJ12fjtvsjNS1qSOLOI64iOXCReE6eflLzWhB9JPFzjmg/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-3281538805315874391</id><published>2011-04-06T15:04:00.003+10:00</published><updated>2011-04-06T15:10:57.817+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="probability"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>TurtleArt die or spinner</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZaD8AgSuDE5ES-Z1VqFAUqBZHQf2JdoQYA34UmjtZIrtn2UdBdIBgghBo2GF5WYZBOVf1Yg3jYXmx8GS2ENOzVtByUOtevKdgKLU4iwxzomvC0VNlRuoNhxLlAQqC5dD-1Ql3eA/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 238px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZaD8AgSuDE5ES-Z1VqFAUqBZHQf2JdoQYA34UmjtZIrtn2UdBdIBgghBo2GF5WYZBOVf1Yg3jYXmx8GS2ENOzVtByUOtevKdgKLU4iwxzomvC0VNlRuoNhxLlAQqC5dD-1Ql3eA/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5592332438286679586" border="0" /></a> Enter the number of faces (2-9) and then it tosses the die when you press a key. <a href="http://wiki.sugarlabs.org/go/File:Turtle_Art_Activity_spinner.ta">source</a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/3281538805315874391/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=3281538805315874391' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3281538805315874391'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/3281538805315874391'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/04/turtleart-die-or-spinner.html' title='TurtleArt die or spinner'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjZaD8AgSuDE5ES-Z1VqFAUqBZHQf2JdoQYA34UmjtZIrtn2UdBdIBgghBo2GF5WYZBOVf1Yg3jYXmx8GS2ENOzVtByUOtevKdgKLU4iwxzomvC0VNlRuoNhxLlAQqC5dD-1Ql3eA/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-4761854744582891697</id><published>2011-04-04T13:22:00.008+10:00</published><updated>2011-04-08T11:15:10.920+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="maths"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Fractions and decimals 4th grade maths</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEx8Y0BfFrNkuV7LaRfqeyXIwYbSr8LwL9rFcy7iTfHhRBekHNxNB44fY4XkyS_6y9ROEOKAQA5dcMy4nH__FiWo6BK8jX8D4qCtpDNLLQtllszuJs5KrVIiLVui_Nu7p6Qkmujw/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 160px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEx8Y0BfFrNkuV7LaRfqeyXIwYbSr8LwL9rFcy7iTfHhRBekHNxNB44fY4XkyS_6y9ROEOKAQA5dcMy4nH__FiWo6BK8jX8D4qCtpDNLLQtllszuJs5KrVIiLVui_Nu7p6Qkmujw/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5591563954847927970" border="0" /></a>Fractions TurtleArt project to meet outcomes <a href="http://wiki.sugarlabs.org/go/Math4Team/Resources/Curriculum_Chart#Number_Sense_and_Operations">4N3 to 4N6 in the 4th grade math</a> curriculum. Enter a single digit numerator and denominator to hit a target which is expressed as a decimal 0<x>&lt;1. Open the<a href="http://wiki.sugarlabs.org/go/File:Turtle_Art_Activity_baloon0-1.ta"> source</a> and paste into TurtleArt. Could be improved with rewards and score. Multiplication version </x><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7m0RXGmUGQehf8DnzGFTNKtYU8AJB5Q4zrtyZ48dUkwpC4TArotKxIL0tsiOV-nVk9gezjbpYVPGMDN5JMpBgDgeT1c3WayK-GkqjdFCTaMakJBSRLoFp2o1gwZMLb0tdKMAaUw/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 168px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh7m0RXGmUGQehf8DnzGFTNKtYU8AJB5Q4zrtyZ48dUkwpC4TArotKxIL0tsiOV-nVk9gezjbpYVPGMDN5JMpBgDgeT1c3WayK-GkqjdFCTaMakJBSRLoFp2o1gwZMLb0tdKMAaUw/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5591574609083535362" border="0" /></a><a href="http://wiki.sugarlabs.org/go/File:Baloon100.ta">Source</a> <x> Counting </x><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFlJYYEq5G3HTS3eKrtRi2EebAURCwtvsKujjZiD5VcJZHroV_A_cAC2wDtJtY6gWvkzrU3KKuImmWsvknLRnzfJJktlh-agXb383SS27MG8Vs2mIQ5cXMawHd3F0ln8GA0X2h6w/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 235px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFlJYYEq5G3HTS3eKrtRi2EebAURCwtvsKujjZiD5VcJZHroV_A_cAC2wDtJtY6gWvkzrU3KKuImmWsvknLRnzfJJktlh-agXb383SS27MG8Vs2mIQ5cXMawHd3F0ln8GA0X2h6w/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5593013156817656578" border="0" /></a>Enter the number of balloons. If the turtle hits the top balloon, all are popped. <a href="http://wiki.sugarlabs.org/go/File:Count1-9.ta">Source</a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/4761854744582891697/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=4761854744582891697' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/4761854744582891697'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/4761854744582891697'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/04/fractions-and-decimals-4th-grade-maths.html' title='Fractions and decimals 4th grade maths'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiEx8Y0BfFrNkuV7LaRfqeyXIwYbSr8LwL9rFcy7iTfHhRBekHNxNB44fY4XkyS_6y9ROEOKAQA5dcMy4nH__FiWo6BK8jX8D4qCtpDNLLQtllszuJs5KrVIiLVui_Nu7p6Qkmujw/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-4639213588869671930</id><published>2011-04-03T17:42:00.007+10:00</published><updated>2011-04-03T18:31:53.502+10:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="maths"/><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Turtle flip and rotate, 4th grade maths</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZUvKQ8mBtldUBdhiruyo_GZiii6yT3ScBzSwcQA4x56NIPo3f7aEcBb0Y8ZbwXAQZTuLWbtTQp9XXmulissLq4vLnA-Q8dKf0hwu00i3FVZ7HInRAwmj5ViOyLI4vFbnSH0J94g/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 303px; height: 113px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZUvKQ8mBtldUBdhiruyo_GZiii6yT3ScBzSwcQA4x56NIPo3f7aEcBb0Y8ZbwXAQZTuLWbtTQp9XXmulissLq4vLnA-Q8dKf0hwu00i3FVZ7HInRAwmj5ViOyLI4vFbnSH0J94g/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5591259885369258258" border="0" /></a>An activity in Turtle Art to meet the <a href="http://wiki.sugarlabs.org/go/Math4Team/Resources/Curriculum_Chart#Geometry">4th grade curriculum</a> item "4.G.7 Describe and apply techniques such as reflections (flips), rotations (turns), and translations (slides) for determining if two shapes are congruent" A number of shapes are randomly generated (in this prototype just a right angle triangle and a trapezium) unrotated and unflipped on the left and randomly rotated and flipped on the right. The student flips and rotates to match the two polygons. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5CdFK1KuN8EG1SEalLEuXmI5SS0_mUuWlNhTAIo5Kgpch64GXnRpn4R-BouYBc3AXE0uLoVlYeaZZbdb2xq0U5d4JEg10uoDIeX0PNxQmA9JHX29cdYEI217N2AtyuujEtFLfxg/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 281px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5CdFK1KuN8EG1SEalLEuXmI5SS0_mUuWlNhTAIo5Kgpch64GXnRpn4R-BouYBc3AXE0uLoVlYeaZZbdb2xq0U5d4JEg10uoDIeX0PNxQmA9JHX29cdYEI217N2AtyuujEtFLfxg/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5591261776655975026" border="0" /></a>In boxes (variables) 11 to 19, the trapezium is stored, distance, rotation, distance, rotation ... and terminated buy -1. Similarly, the triangle is stored in variables 21 to 27. poly is a random number, either 10 for the trapezium or 20 for the triangle. Rotate is a random number, (0-7) x 45 and flip is either -1 or 1. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPSaMI6nfXBscmQWr2l8EG95o62SCPqsa72BDQvoNnwLXpxdnjR2mLIhoHn4i72jDccqOvh7Nw-TIMXThgKCjCd-tH13Nliw9K7TKvIQK7jB_gbPDIcSBvEOuaP-DuAqBdKO7K2A/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 239px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPSaMI6nfXBscmQWr2l8EG95o62SCPqsa72BDQvoNnwLXpxdnjR2mLIhoHn4i72jDccqOvh7Nw-TIMXThgKCjCd-tH13Nliw9K7TKvIQK7jB_gbPDIcSBvEOuaP-DuAqBdKO7K2A/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5591263312229063522" border="0" /></a>The program loops, waiting either a 'F' key, 102 or a 'R' key, 114. The polygon is drawn once on the left unflipped and unrotated (netflip =12 and netrotate =0) and drawn once on the right flipped and rotated (netflip = flip x userflip and netrotate = rotate + userrotate) <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5eHj9wmyMA-SUp5_T2yM9ZEFJZaf59OW58kQq0eh-7vLf8mEYY8cwKVp5KeirAGvJdWx3DY3C0ligmkjG59j5mPzDTUDPuKB4qxbN9Q5wcIGlBBuPoFQbosE5YJDQAC56zQ_24A/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 377px; height: 237px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi5eHj9wmyMA-SUp5_T2yM9ZEFJZaf59OW58kQq0eh-7vLf8mEYY8cwKVp5KeirAGvJdWx3DY3C0ligmkjG59j5mPzDTUDPuKB4qxbN9Q5wcIGlBBuPoFQbosE5YJDQAC56zQ_24A/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5591264805682768130" border="0" /></a>drawpoly draws the polygon specified in box 11-19 or 21-27 terminating on a -1 value, the polygon has rotation and flip specified in netrotate and netflip. The activity could be improved with a score or reward system, sideways translation, more polygons and randomly congruent and incongruent pairs <a href="http://wiki.sugarlabs.org/go/File:Flipandrotate.ta">Source</a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/4639213588869671930/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=4639213588869671930' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/4639213588869671930'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/4639213588869671930'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/04/turtle-flip-and-rotate-4th-grade-maths.html' title='Turtle flip and rotate, 4th grade maths'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZUvKQ8mBtldUBdhiruyo_GZiii6yT3ScBzSwcQA4x56NIPo3f7aEcBb0Y8ZbwXAQZTuLWbtTQp9XXmulissLq4vLnA-Q8dKf0hwu00i3FVZ7HInRAwmj5ViOyLI4vFbnSH0J94g/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-335562616688138271</id><published>2011-03-21T12:38:00.012+11:00</published><updated>2011-03-21T15:41:37.437+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Pippy"/><category scheme="http://www.blogger.com/atom/ns#" term="Python"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Broadcasting your screen to XO laptops</title><content type='html'>The Activity Turtle Art can be used to broadcast an OLPC XO laptop's screen to other laptops. In a shared session, images are reproduced on all laptops from TurtleArt V106. Enter the <a href="http://wiki.sugarlabs.org/go/File:Printscreen.doc">following code</a> in Pippy and save: <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTjutwn1LAhrzSo3dxmsl0IgV7lLHqktLHGN8WqCGGGllVnBxGlUuY2PAU-WcD65T9eWSIicPpsyCF_k9k1Fviu3ijNWGRCRIFm0yDbbHqeUkpiTSrTlVQRjJv1VY0yBfPuBZv4g/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 133px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTjutwn1LAhrzSo3dxmsl0IgV7lLHqktLHGN8WqCGGGllVnBxGlUuY2PAU-WcD65T9eWSIicPpsyCF_k9k1Fviu3ijNWGRCRIFm0yDbbHqeUkpiTSrTlVQRjJv1VY0yBfPuBZv4g/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5586342408571044034" border="0" /></a> Run the following code on the sending XO laptop in Turtle Art, click the Python block to load the Python code: <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_SZ-3tTLZWERNpMCL0KDbSh5jSrEN_fwtHzHyosfjFt-rVB4huhjyzu4r4jCb786lfF4-o3BN3G5vPpKPD0rKmCY3P_Ro4K7K210PUXwFY2yIFkWzyDGz6I39NL-FU_YUKLGtcA/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 265px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg_SZ-3tTLZWERNpMCL0KDbSh5jSrEN_fwtHzHyosfjFt-rVB4huhjyzu4r4jCb786lfF4-o3BN3G5vPpKPD0rKmCY3P_Ro4K7K210PUXwFY2yIFkWzyDGz6I39NL-FU_YUKLGtcA/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5586343029126068578" border="0" /></a>The Media block points to the screenshot image ["journal", "/home/olpc/Activities/TurtleArt.activity/screenshot.png"] Either use this <a href="http://wiki.sugarlabs.org/go/File:Turtle_Art_Activity_ss.ta">TurtleArt file</a> , hand edit the Media block in a word processor or first run Turtle Art in Gnome (which has a file chooser instead of a journal object chooser) to set the Media block to the screenshot image. All other laptops in the shared session will receive a screenshot every 5 seconds of the sending laptop's screen, whatever it is showing (but not the mouse cursor). Below the received image of the sending laptop's home view. <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVGwuFl6AGFB9q096dvRG2H-x0K12ARI9C95f-ha9z0GmL9X2UMzah-uODjqVMCqLifkhT0kwC2PynlK2bO2kJtxGEXEGwgmpU3WZ5UR0cINW0UV31b9H3ULXPUBptSjZYfpiL_A/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 200px; height: 138px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjVGwuFl6AGFB9q096dvRG2H-x0K12ARI9C95f-ha9z0GmL9X2UMzah-uODjqVMCqLifkhT0kwC2PynlK2bO2kJtxGEXEGwgmpU3WZ5UR0cINW0UV31b9H3ULXPUBptSjZYfpiL_A/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5586345324285182562" border="0" /></a> The image size and the sending interval are adjustable on the sending laptop with draggable blocks, experiment for the best results on your network. Programming challenges: <ul><li>Add a mouse cursor</li><li>break the image up into tiles and only transmit changed tiles</li></ul></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/335562616688138271/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=335562616688138271' title='1 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/335562616688138271'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/335562616688138271'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/03/broadcasting-your-screen-to-xo-laptops.html' title='Broadcasting your screen to XO laptops'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTjutwn1LAhrzSo3dxmsl0IgV7lLHqktLHGN8WqCGGGllVnBxGlUuY2PAU-WcD65T9eWSIicPpsyCF_k9k1Fviu3ijNWGRCRIFm0yDbbHqeUkpiTSrTlVQRjJv1VY0yBfPuBZv4g/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>1</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-6821682868805838863</id><published>2011-03-03T12:23:00.007+11:00</published><updated>2011-03-03T13:52:35.274+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Pippy"/><category scheme="http://www.blogger.com/atom/ns#" term="Python"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Singing turtle</title><content type='html'>For TurtleArt on the Sugar OS <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCNmpl2QWs76QHYE1Sea0XAl_7b0-4unrgXugpM7lwaY7mG6MS2cqQdz2EiPV2bnDLSE7UVgWDlMeTpqM97J3WSu0G_UThRRC-Yr_1BSykAxUJKjqV0NEqDBKs1pQu78RSXvSA3g/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 73px; height: 200px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCNmpl2QWs76QHYE1Sea0XAl_7b0-4unrgXugpM7lwaY7mG6MS2cqQdz2EiPV2bnDLSE7UVgWDlMeTpqM97J3WSu0G_UThRRC-Yr_1BSykAxUJKjqV0NEqDBKs1pQu78RSXvSA3g/s200/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5579659217256815138" border="0" /></a> Load the Python block with the following code <a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBL3tbcJauPi9Z0yN95EzAb3RBeQMxF5PwZq0gABKjQy3E2uHcXeCoXnb4tilpkplOUvzaR-7CGR6SGdhYLAPQpifgxOeNgJOir80jH7TT1WcH9zd1aNaeAkds0Xoy9t3vYcqrlQ/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 400px; height: 73px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjBL3tbcJauPi9Z0yN95EzAb3RBeQMxF5PwZq0gABKjQy3E2uHcXeCoXnb4tilpkplOUvzaR-7CGR6SGdhYLAPQpifgxOeNgJOir80jH7TT1WcH9zd1aNaeAkds0Xoy9t3vYcqrlQ/s400/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5579658863477082242" border="0" /></a> The inbuilt sample code speak.py will incorporate this functionality from V107</content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/6821682868805838863/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=6821682868805838863' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/6821682868805838863'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/6821682868805838863'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/03/singing-turtle.html' title='Singing turtle'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhCNmpl2QWs76QHYE1Sea0XAl_7b0-4unrgXugpM7lwaY7mG6MS2cqQdz2EiPV2bnDLSE7UVgWDlMeTpqM97J3WSu0G_UThRRC-Yr_1BSykAxUJKjqV0NEqDBKs1pQu78RSXvSA3g/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry><entry><id>tag:blogger.com,1999:blog-21691604.post-1773989749190908499</id><published>2011-02-28T15:38:00.005+11:00</published><updated>2011-02-28T16:12:03.745+11:00</updated><category scheme="http://www.blogger.com/atom/ns#" term="olpc"/><category scheme="http://www.blogger.com/atom/ns#" term="Python"/><category scheme="http://www.blogger.com/atom/ns#" term="Sugar"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleArt"/><category scheme="http://www.blogger.com/atom/ns#" term="TurtleBlocks"/><title type='text'>Turtle talking clock</title><content type='html'><a onblur="try {parent.deselectBloggerImageGracefully();} catch(e) {}" href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbbrbVbL8pu_09UIA337VGql04YMnOkjYUi_yNFBKUwd6ejtkTswFKdXRBOgZBnAI91n_d-nig32Y8Gd4hebRJszke9BdTtk9QlYp7tAmAzOSeFw1WGBoEZHitAVRQyfj8Ar1EZg/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 320px; height: 180px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbbrbVbL8pu_09UIA337VGql04YMnOkjYUi_yNFBKUwd6ejtkTswFKdXRBOgZBnAI91n_d-nig32Y8Gd4hebRJszke9BdTtk9QlYp7tAmAzOSeFw1WGBoEZHitAVRQyfj8Ar1EZg/s320/Untitled.jpg" alt="" id="BLOGGER_PHOTO_ID_5578595350709588066" border="0" /></a> <a href="http://wiki.sugarlabs.org/images/b/bf/Talking_clock.ta">source</a> Load the Python block with Speak.py (which is an inbuilt sample from V106) <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyHrHEad__YiuV8uz8xaCdNgV01gxe5-C-Hm2JKMnU0CASsZqacETyzuY_ERFvxruyYMYrPD7k7J7k4WG06xViHkLYx6rmKzf3GrkDub9gW6NBden8WJe2MDhnX3K0w2ntOKPrnA/s1600/Untitled.jpg"><img style="display: block; margin: 0px auto 10px; text-align: center; cursor: pointer; width: 395px; height: 117px;" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgyHrHEad__YiuV8uz8xaCdNgV01gxe5-C-Hm2JKMnU0CASsZqacETyzuY_ERFvxruyYMYrPD7k7J7k4WG06xViHkLYx6rmKzf3GrkDub9gW6NBden8WJe2MDhnX3K0w2ntOKPrnA/s1600/Untitled.jpg" alt="" border="0" /></a><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhOerL2aBv9sl-ZFNKP7QFhOreSSzEXCfP8LBDXgxs1NjVHM9hpaTknbPZj4T2DiLNvC9oDdO-c6-g8jy90Q7UYqkpo63dFnrJ20RxQTqjLAcvw0cE3oDaNMzrufcS9jdbGTw36gA/s320/Untitled.jpg"> </a></content><link rel='replies' type='application/atom+xml' href='http://tonyforster.blogspot.com/feeds/1773989749190908499/comments/default' title='Post Comments'/><link rel='replies' type='text/html' href='http://www.blogger.com/comment.g?blogID=21691604&postID=1773989749190908499' title='0 Comments'/><link rel='edit' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/1773989749190908499'/><link rel='self' type='application/atom+xml' href='http://www.blogger.com/feeds/21691604/posts/default/1773989749190908499'/><link rel='alternate' type='text/html' href='http://tonyforster.blogspot.com/2011/02/turtle-talking-clock.html' title='Turtle talking clock'/><author><name>Anonymous</name><uri>http://www.blogger.com/profile/03384288304778972289</uri><email>noreply@blogger.com</email><gd:image rel='http://schemas.google.com/g/2005#thumbnail' width='16' height='16' src='https://img1.blogblog.com/img/b16-rounded.gif'/></author><media:thumbnail xmlns:media="http://search.yahoo.com/mrss/" url="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgbbrbVbL8pu_09UIA337VGql04YMnOkjYUi_yNFBKUwd6ejtkTswFKdXRBOgZBnAI91n_d-nig32Y8Gd4hebRJszke9BdTtk9QlYp7tAmAzOSeFw1WGBoEZHitAVRQyfj8Ar1EZg/s72-c/Untitled.jpg" height="72" width="72"/><thr:total>0</thr:total></entry></feed>

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