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Three children are going to buy some plants for their birthdays. They will plant them within circular paths. How could they do this?

Junior Frogs

Have a go at this well-known challenge. Can you swap the frogs and toads in as few slides and jumps as possible?

Three Sets of Cubes, Two Surfaces

How many models can you find which obey these rules?

Winning the Lottery

Age 7 to 11
Challenge Level

What number/s could be drawn?
What are all the possilble draws?
How do you know you have got them all?
How can you tell which version of the lottery is easier/harder to win?