These five clowns work in pairs. What is the same and what is different about each pair's faces?

Ahmed is making rods using different numbers of cubes. Which rod is twice the length of his first rod?

Can you work out the height of Baby Bear's chair and whose bed is whose if all the things the three bears have are in the same proportions?

Using different numbers of sticks, how many different triangles are you able to make? Can you make any rules about the numbers of sticks that make the most triangles?

In this challenge, buckets come in five different sizes. If you choose some buckets, can you investigate the different ways in which they can be filled?

You had some very thoughtful suggestions about the possible meanings of these drawings.

This article for teachers suggests ideas for activities built around 10 and 2010.

Can you find six numbers to go in the Daisy from which you can make all the numbers from 1 to a number bigger than 25?