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Penta people, the Pentominoes, always build their houses from five square rooms. I wonder how many different Penta homes you can create?

Two by One

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

Shapely Tiling

Use the interactivity to make this Islamic star and cross design. Can you produce a tessellation of regular octagons with two different types of triangle?

Tessellating Triangles

Age 7 to 11
Challenge Level

There are lots of interesting designs to be made by tessellating triangles. Have a go yourself, and if you discover anything interesting, email primary.nrich@maths.org to tell us what you've done!

Please don't worry that your solution is not "complete" - we'd like to hear about anything you have tried.

Teachers - you might like to send in a summary of your children's work.