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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?

Triangle Animals

How many different ways can you find to join three equilateral triangles together? Can you convince us that you have found them all?


My coat has three buttons. How many ways can you find to do up all the buttons?

Junior Frogs

Age 5 to 11
Challenge Level
You could use counters or blocks to represent the frogs if you're not using the interactivity.
How will you keep track of the moves you've made?
Where could you move that frog?  What would happen next?  So which move might be better/best?