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Counting Counters

Take a counter and surround it by a ring of other counters that MUST touch two others. How many are needed?

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Cuisenaire Rods

These squares have been made from Cuisenaire rods. Can you describe the pattern? What would the next square look like?

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Doplication

We can arrange dots in a similar way to the 5 on a dice and they usually sit quite well into a rectangular shape. How many altogether in this 3 by 5? What happens for other sizes?

Snake Coils

Stage: 2 Challenge Level: Challenge Level:1
This diagram for the five coils might help you to imagine what is happening.
Each set of circles should be the same size and on top of each other, but we could not show that in a diagram.