{"id":2671,"date":"2012-03-06T03:20:33","date_gmt":"2012-03-06T08:20:33","guid":{"rendered":"http:\/\/stager.tv\/?p=2671"},"modified":"2021-08-08T07:18:17","modified_gmt":"2021-08-08T12:18:17","slug":"cool-math-tech-books-for-free-download","status":"publish","type":"post","link":"https:\/\/stager.tv\/?p=2671","title":{"rendered":"Cool Math &#038; Tech Books for Free Download"},"content":{"rendered":"<p>An old friend of mine, <a title=\"Barry Newell\" href=\"https:\/\/researchers.anu.edu.au\/researchers\/newell-eb\" target=\"_blank\" rel=\"noopener\">Dr. Barry Newell<\/a>, is an astrophysicist who was was the Administrator (in the NASA sense) of Mount Stromlo and Siding Spring Observatories of the Australian National University. He now works on the dynamics of social-ecological systems. In his spare time (back in 1988), he wrote two classic books on Logo programming and mathematics, <em>Turtle Confusion<\/em> and the accompanying book for educators, <em>Turtles Speak Mathematics. <\/em>Turtle Confusion features 40 challenging turtle geometry puzzles in a mystery format and <em>Turtles Speak Mathematics<\/em> helps educators understand the mathematics their students are learning.<\/p>\n<p style=\"text-align: center;\"><em><a><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2677\" title=\"turtlebookcoversskewed\" src=\"http:\/\/stager.tv\/wp-content\/uploads\/2012\/03\/turtlebookcoversskewed.png\" alt=\"\" width=\"290\" height=\"207\" \/><\/a><br \/>\n<\/em><\/p>\n<p>I was reminded of the books when Sugar Labs, the folks behind the operating system for the One Laptop Per Child XO laptop, featured the challenges as an <a title=\"Turtle Confusion activity\" href=\"http:\/\/wiki.sugarlabs.org\/go\/Activities\/Turtle_Confusion\" target=\"_blank\" rel=\"noopener\">activity<\/a> to accompany <a title=\"TurtleArt web site\" href=\"http:\/\/turtleart.org\" target=\"_blank\" rel=\"noopener\">TurtleArt<\/a> software on the XO.<\/p>\n<figure style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/wiki.sugarlabs.org\/go\/Activities\/Turtle_Confusion\"><img loading=\"lazy\" decoding=\"async\" class=\"  \" title=\"Turtle Confusion XO Activity\" src=\"http:\/\/wiki.sugarlabs.org\/images\/c\/c7\/TurtleConfusion-40.png\" alt=\"\" width=\"300\" height=\"225\" \/><\/a><figcaption class=\"wp-caption-text\">Screenshot of the XO Turtle Confusion Activity<\/figcaption><\/figure>\n<p>The books&#8217; author, <a title=\"Barry Newell\" href=\"https:\/\/researchers.anu.edu.au\/researchers\/newell-eb\" target=\"_blank\" rel=\"noopener\">Dr. Barry Newell,<\/a> gave me permission to share digital copies of the book for personal, educational and non-commercial use. <strong><a title=\"Download page\" href=\"http:\/\/constructingmodernknowledge.com\/cmk08\/?p=1451\" target=\"_blank\" rel=\"noopener\">Click here<\/a><\/strong> to go to the download page.<\/p>\n<blockquote><p>These books are best used with versions of Logo such as <a href=\"http:\/\/lynxcoding.club\" target=\"_blank\" rel=\"noopener\">Lynx <\/a>(newest option), <a title=\"MicroWorlds EX\" href=\"http:\/\/microworlds.com\" target=\"_blank\" rel=\"noopener\">MicroWorlds EX<\/a> or <a title=\"Berkeley Logo\" href=\"http:\/\/www.cs.berkeley.edu\/~bh\/logo.html\" target=\"_blank\" rel=\"noopener\">Berkeley Logo<\/a>. Some of the puzzles are very difficult or impossible to solve in <a title=\"Scratch\" href=\"http:\/\/scratch.mit.edu\" target=\"_blank\" rel=\"noopener\">Scratch<\/a>, but it&#8217;s worth trying. <a title=\"Snap!\" href=\"http:\/\/byob.berkeley.edu\/\" target=\"_blank\" rel=\"noopener\">SNAP!<\/a> is another potential option. <a title=\"TurtleArt\" href=\"http:\/\/turtleart.org\" target=\"_blank\" rel=\"noopener\">Turtle Art<\/a> is strong contender.<\/p>\n<p>Although, mathematical programming is often easiest and best achieved through the use of textual language (IMHO). A bit of dialect translation might be necessary. For example, CS is often CG (in <a title=\"MicroWorlds EX\" href=\"http:\/\/microworlds.com\" target=\"_blank\" rel=\"noopener\">MicroWorlds EX<\/a>\u00a0or <a href=\"http:\/\/lynxcoding.club\" target=\"_blank\" rel=\"noopener\">Lynx<\/a>).<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>Turtle Confusion features 40 challenging turtle geometry puzzles in a mystery format and Turtles Speak Mathematics helps educators understand the mathematics their students are learning.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[479,437,430,435,434,436,429,431,438],"tags":[1395,1140,672,882,543,977,1141,1137,1138,1139],"class_list":["post-2671","post","type-post","status-publish","format-standard","hentry","category-11-computing","category-books","category-creativity","category-featured","category-learning","category-news","category-project-based-learning","category-teaching","category-technology","tag-books","tag-byob","tag-logo","tag-mathematics","tag-microworlds","tag-scratch","tag-snap","tag-turtle-geometry","tag-turtle-graphics","tag-turtleart"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cool Math &amp; 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