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Can you make five differently sized squares from the tangram pieces?

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

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Baked Bean Cans

Is there a best way to stack cans? What do different supermarkets do? How high can you safely stack the cans?

Straight to Curves

Age 5 to 11 Challenge Level:
Lay out one strip, then place a second strip next to the first so that the two strips touch at one end, but are further apart at the other end. Can you continue this to make a curve? It might help if you place the centre strip first.