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Rearrange the Square
problem

Rearrange the Square

5 to 7
We can cut a small triangle off the corner of a square and then fit the two pieces together. Can you work out how these shapes are made from the two pieces?
Digital Roots
article

Digital Roots

7 to 14

In this article for teachers, Bernard Bagnall describes how to find digital roots and suggests that they can be worth exploring when confronted by a sequence of numbers.

Tiles in a public building
problem

Tiles in a Public Building

7 to 11

What is the same and what is different about these tiling patterns and how do they contribute to the floor as a whole?

Light Blue - Dark Blue
problem

Light Blue - Dark Blue

7 to 11

Investigate the successive areas of light blue in these diagrams.

Finding Out!
problem

Finding Out!

7 to 11

Explore all aspects of measurement in this activity.

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