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Tangrams

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

Polydron

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

Tiles on a Patio

How many ways can you find of tiling the square patio, using square tiles of different sizes?

Geoboards

Age 7 to 11
Challenge Level
Try starting a square on one of the edge pegs. Look at all the other pegs in turn - could you use that peg as the second corner of a square?
Can you make a square whose edges aren't parallel to the rows or columns of pegs?