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Imagine a pyramid which is built in square layers of small cubes. If we number the cubes from the top, starting with 1, can you picture which cubes are directly below this first cube?

How could Penny, Tom and Matthew work out how many chocolates there are in different sized boxes?

We started drawing some quadrilaterals - can you complete them?

Investigate the area of 'slices' cut off this cube of cheese. What would happen if you had different-sized block of cheese to start with?

Things are roughened up and friction is now added to the approximate simple pendulum

Watch these videos to see how Phoebe, Alice and Luke chose to draw 7 squares. How would they draw 100?

Four friends must cross a bridge. How can they all cross it in just 17 minutes?

Make one big triangle so the numbers that touch on the small triangles add to 10.