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Tangrams

Can you make five differently sized squares from the interactive tangram pieces?

Polydron

This activity investigates how you might make squares and pentominoes from Polydron.

Baked Bean Cans

Is there a best way to stack cans? What do different supermarkets do? How high can you safely stack the cans?

Four Colours

Age 5 to 11
Challenge Level
How many faces on a cube?
How many small faces can you see on each of the larger faces?
How many small faces can you see on the larger cube?
How does this compare with the number of small faces there are altogether?
Can you explain what you notice?
How many faces of each of the smaller cubes will be visible on the larger cube?

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.
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NRICH is part of the family of activities in the Millennium Mathematics Project.