[IAEP] 40 maths shapes challenges

Bill Kerr billkerr at gmail.com
Mon Aug 31 07:19:33 EDT 2009

Image attached
Forty shapes to make in Scratch <http://scratch.mit.edu/> or some other
version of logo, such as Turtle
It's hard to see the thumbnail but click on it for a larger view.

This is one of the best sheets ever for teaching maths (designed by Barry

   - the logo turtle or scratch cat acts as a transitional object between
   the concrete maths shape and the abstraction of the script that makes the
   - the sheet includes both simple and complex shapes, increasing in order
   of complexity, there is a challenge there for everyone
   - many of the more complex shapes are made up of combinations of the
   simpler shapes

Source: Barry Newell's Turtle Confusion (1988)
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