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Which rational numbers cannot be written in the form x + 1/(y + 1/z) where x, y and z are integers?

Arrange 3 red, 3 blue and 3 yellow counters into a three-by-three square grid, so that there is only one of each colour in every row and every column

Shapes are added to other shapes. Can you see what is happening? What is the rule?

You are organising a school trip and you need to write a letter to parents to let them know about the day. Use the cards to gather all the information you need.

What happens to the area and volume of 2D and 3D shapes when you enlarge them?

If you put three beads onto a tens/ones abacus you can make the numbers 3, 30, 12 or 21. What numbers can be made with six beads?

Can you put these shapes in order of size? Start with the smallest.

A group of animals has made a seesaw in the woods. How can you make the seesaw balance?

In this challenge, you will work in a group to investigate circular fences enclosing trees that are planted in square or triangular arrangements.