4348 /www/nrich/html/content/id/4348/ 6 2011-02-01T00:00:01 <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"><br></br> <a href="/content/id/4348/cuisenaire.swf">Full Screen Version</a> <mdo:flash height="400" width="550"><param value="/content/id/4348/cuisenaire.swf" name="movie" ></param><param value="7" name="flashplayerversion" ></param></mdo:flash> <br></br> Click on 'Rods', to choose a Cuisenaire rod and then drag it onto the squared background. More rods can be added in a similar way and aligned as you wish. A rod can be rotated by $90^\circ$ by clicking any key whilst dragging. The background squares can be altered (for example increasing/decreasing their size) using the 'View' menu.<br></br> <br></br> You could use this environment for all sorts of purposes - perhaps to explore addition and subtraction, factors and multiples or ideas about fractions. <br></br> <br></br> For more ideas, look at the <a href="http://nrich.maths.org/public/viewer.php?obj_id=4388&amp;part=index"> Notes</a> section, or go to <a href="http://nrich.maths.org/public/monthindex.php?year=2005&amp;month=10&amp;choice=3&amp;showfulltier=yes&amp;submit=GO"> this page</a> where there is a collection of Cuisenaire problems. <br></br></mdoxml> <?xml version="1.0" encoding="UTF-8"?> <mdoxml version="1.0"><br></br> This interactive environment can be used with children, perhaps on an interactive whiteboard, for many different purposes. These might include, for example, exploring ideas associated with factors and multiples or addition and subtraction. It is also an ideal context in which to investigate fractions and ratio, or to look at finding combinations. You can also explore number patterns. By asking different questions, the environment can be put to all sorts of uses.<br></br> <br></br> You can also encourage children to 'play with' the interactivity themselves, perhaps in pairs.<br></br> <br></br> For NRICH problems which specifically mention the use of Cuisenaire rods, go to the <a href="http://nrich.maths.org/public/leg.php">Maths finder</a> and select 'Mathematics Tools'.<br></br> <br></br></mdoxml> 2 3 1 1 0 0 0 An environment which simulates working with Cuisenaire rods. Fractions, Decimals, Percentages, Ratio and Proportion Fractions Numbers and the Number System Factors and multiples Calculations and Numerical Methods Addition & subtraction Information and Communications Technology Interactivities Decision Mathematics and Combinatorics Combinations Sequences, Functions and Graphs Sequences