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Four Triangles Puzzle

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?

Two by One

An activity making various patterns with 2 x 1 rectangular tiles.

Playground Snapshot

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?

Circle Panes

Age 7 to 11
Challenge Level


circular window


Look carefully at the photo above, what do you see? What questions would you like to ask?

How many of each coloured pane are there? 

How would you describe the shape of the coloured panes of glass?

How big do you think this window is? 
In how many different ways could you make a sensible estimate of its size?
Talk about the different options with someone else.

You may like to use whatever you like to make a drawing similar to what you see in the picture.