How many people were going to St Ives?

Imagine we have four bags containing numbers from a sequence. What numbers can we make now?

Is it possible to find the angles in this rather special isosceles triangle?

The famous film star Birkhoff Maclane wants to reach her refreshing drink. Should she run around the pool or swim across?

Can you make sense of these three proofs of Pythagoras' Theorem?

Take three consecutive numbers and add them together. What do you notice?

Discover how networks can be used to prove Euler's Polyhedron formula.

Show that if you add 1 to the product of four consecutive numbers the answer is ALWAYS a perfect square.

Can you match each graph to one of the statements?