8168 /www/nrich/html/content/id/8168/ 5 0000-00-00T00:00:00 <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"><p><em>The links on this page take you to external sites; we are not responsible for their content.</em></p> <p><em>Although we try to keep this page up to date, the status of free software or webpages may change. Please <a href="http://nrich.maths.org/contact">let us know</a> if you find a broken or outdated link, or if you want to recommend a link to us.</em></p> <p> </p> <p><strong>Some NRICH problems can be greatly enriched with the use of software to allow students to plot graphs or explore geometry dynamically.</strong></p> <p><mdo:image src="frequencysmall.png" style="float: right;"></mdo:image></p> <p> </p> <p>Spreadsheet software such as Microsoft Excel or the free spreadsheet in <a href="http://www.openoffice.org/">Open Office</a> is useful for  statistics, numerical problems, and some simple programming. <a href="http://docs.google.com">Google Docs</a> also has a spreadsheet function.</p> <p> </p> <p> </p> <p> <mdo:image src="graph.png" style="float: left; margin-left: 20px; margin-right: 20px;"></mdo:image></p> <p><a href="http://geogebra.org">Geogebra</a> is free mathematics software for learning and teaching. It includes dynamic geometry, interactive graphing, algebra and spreadsheet capabilities.</p> <p><a href="https://www.abettercalculator.com/">A Better Calculator</a> is a free online graphing calculator with cartesian, polar, slider functionality for variables and much more.</p> <p><a href="http://graphmatica.com/">Graphmatica</a>  is another graph plotting program. It has a free trial version, with registration required for long-term use.</p> <p> </p> <p> </p> <p><a href="http://fmslogo.sourceforge.net/index.shtml">FMSLogo</a> is a free implementation of the simple Logo programming language.</p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p></mdoxml> 2 3 0 0 0 0 0 A collection of useful graphing resources to support work on NRICH problems.