A visual explanation of Pi.

Find out what square and cube numbers are in this KS3 guide.

A simple, step-by-step, visual guide showing you how to prove the area of a triangle is ½ × base × height.

A simple, visual, step-by-step guide on How to prove the area of a circle is π x r².

A simple, visual, step-by-step guide showing you how to show the surface area of a sphere is 4πr².

A simple, step-by-step, visual guide showing you how to prove the surface area of a cone is π × radius × slant length.

A simple, step-by-step, visual guide showing you how to prove the surface area of a cylinder is (2πr × h) + 2πr².

A simple, visual, step-by-step guide on how to prove that the area of a trapezium = sum of the parallel sides x height / 2.

A simple, step-by-step, visual guide showing you how to prove the area of a parallelogram is base × height.

A simple, visual, step-by-step guide on how to show the circumference of a circle is π x diameter

A visual explanation of the volume of a cone, a sphere and a cylinder.

A simple, visual, step-by-step guide showing you how to prove the volume of a cuboid is base × height × depth.

A simple, step-by-step, visual guide showing you how to prove the volume of a cone is ⅓ height × πr².

2 class clips

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