Before we started using metric measurements, we used imperial measurements with feet, pounds and stones.

Discover the different uses of metric measures from tiny mm to massive km.

Learn about measuring the length of things.

Learn how to measure the area of a square or rectangle.

Discover how to work out the area of a triangle, by working out the area of a rectangle and then dividing it by two.

Find out how the volume of a 3D shape can be calculated by counting cubes.

Take a look at the equation you can use to calculate volume.

20 Classroom videos

We have a selection of great videos for use in the classroom