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

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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?

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These pictures show squares split into halves. Can you find other ways?

Rectangles with Dominoes

Age 5 to 7 Challenge Level:

Can you make a rectangle with just 2 dominoes?

What about 3, 4, 5, 6, 7 ...?

Here's a rectangle made with 6 dominoes to get you started: