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Draw a big hexagon in chalk on the palyground.
Mark a starting point along one of the sides.
Walk round and see how much you turn by the time you get back to the start.
Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?
The image in this problem is part of a piece of equipment found in the playground of a school. How would you describe it to someone over the phone?