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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!

### 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?

### 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?

# Square Tangram

## Square Tangram

A set of shapes has five pieces.
First, make a square using four pieces.
Then, make a square using all five pieces.

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Then add another set of five pieces (so now there are ten) and make a square with all of them.

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You could download this sheet with two sets of pieces for printing and cutting.

### Why do this problem?

This tangram is a challenging context in which to remind pupils of the properties of squares.

### Possible approach

If preferred, they could print off  this sheet and cut out the tangram pieces rather than using the interactivity.

In both cases, it is important that children become more confident at simply "having a go" and playing with their ideas to begin with, rather than feeling that they need to know the "right" way to do it from the start. You might like to model this trial and improvement approach, perhaps on an interactive whiteboard, emphasising that we can learn a lot from what doesn't work.