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Tangrams

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

Baked Bean Cans

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

Three Squares

What is the greatest number of squares you can make by overlapping three squares?

Tricky Triangles

Age 5 to 7
Challenge Level

Here are the ways in which to fill those shapes.