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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?

Twice as Big?

Stage: 2 Challenge Level: Challenge Level:1

We received several solutions to this problem - thank you to all of you who wrote in, including Ivy, Kelsie and William from Mason Middle School; Issy from Culford Prep and Jessica and Philip from CWBS. Here is the image that Jessica and Philip sent:


We also had suggestions about how to go about tackling the problem, for example by starting at the top and fitting shapes in, then gradually working down. Very good advice!