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Cuisenaire Rods

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

In this problem, we're going to make some squares out of Cuisenaire rods.
How would you describe what is happening as the pattern develops?
What will the next square look like?
What colour rod will be in the centre?
How many dark green (next colour) ones will be needed?
The next four colours are black, brown, blue, orange.
Can you describe this pattern in full?
Can you generalise the situation?
If you don't have any Cuisenaire rods, you might like to use our Cuisenaire environment to have a go at this problem.