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Play the game of Poison, Antidote, Water to start to understand the mathematics of associativity and groups.

We need to wrap up this cube-shaped present, remembering that we can have no overlaps. What shapes can you find to use?

When dice land edge-up, we usually roll again. But what if we didn't...?

How much energy has gone into warming the planet?

Polygonal numbers are those that are arranged in shapes as they enlarge. Explore the polygonal numbers drawn here.

What is the smallest number of tiles needed to tile this patio? Can you investigate patios of different sizes?

What symbol should be inserted to make the equation true?

Use the clues to find out who's who in the family, to fill in the family tree and to find out which of the family members are mathematicians and which are not.

The Pythagoreans noticed that nice simple ratios of string length made nice sounds together.