[IAEP] shape 31

[Bill Kerr]

http://billkerr2.blogspot.com/2009/09/shape-31.html
<http://billkerr2.blogspot.com/2009/09/shape-31.html>"So, I realised this
was a nice challenge in real maths and understanding of the application of
variables, measurement, ratio, proportion and fractions"

<http://billkerr2.blogspot.com/2009/09/shape-31.html>I see this as a good
example of where constructionist methods are necessary and instructionist or
conventional textbook methods could not work

In Bruner's terms it would be a matter of finding an honest child's version
of such puzzles all the way down to primary age levels
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