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Geoboards

This practical challenge invites you to investigate the different squares you can make on a square geoboard or pegboard.

Polydron

This activity investigates how you might make squares and pentominoes from Polydron.

Multilink Cubes

If you had 36 cubes, what different cuboids could you make?

Three Way Mix Up

Age 5 to 11 Challenge Level:

It might help to have some coloured counters to move around, or you could use some squared paper and three coloured pencils/pens.
Have you checked to see if your arrangements obey the rule?
How do you know your arrangement is different from the others you've made?