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Tangram Paradox

How can the same pieces of the tangram make this bowl before and after it was chipped? Use the interactivity to try and work out what is going on!

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Cutting Corners

Can you make the most extraordinary, the most amazing, the most unusual patterns/designs from these triangles which are made in a special way?

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Cut and Make

Cut a square of paper into three pieces as shown. Now,can you use the 3 pieces to make a large triangle, a parallelogram and the square again?

Sorting Symmetries

Age 7 to 11 Challenge Level:

You could start with the blue side of the triangle facing up. How can you turn it so that it fits in the slot in a different way?
If the yellow side is facing up, how can you post it now?
How will you record these different ways?