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?
An activity making various patterns with 2 x 1 rectangular tiles.
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?
We haven't had any correct solutions to this problem yet, but you can still send us your ideas - we'd love to hear from you.