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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?

Data Duos

Age 7 to 11
Challenge Level

Choose one of the diagrams. What does it show? 
How will we find a Carroll/Venn diagram that matches it? What will we look for?
Why are two shapes in the same region/cell in some of the diagrams? How might this help us find the matching Venn/Carroll diagram?