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Have a good look at these images. Can you describe what is happening? There are plenty more images like this on NRICH's Exploring Squares CD.

This challenging activity involves finding different ways to distribute fifteen items among four sets, when the sets must include three, four, five and six items.

Explore all aspects of measurement in this activity.

Tim's class collected data about all their pets. Can you put the animal names under each column in the block graph using the information?

This practical activity involves measuring length/distance.

One of these numbers is the largest of nine consecutive positive integers whose sum is a perfect square. Which one is it?