Application of infrared light Slideshow Play

Building a demonstration from a proof Student activity Play

Building a proof from a demonstration Whiteboard exercise Play

Building a proof from a demonstration Student activity Play

Combined events Student activity Play

Implying events Animation Play

Infrared radiation Student activity Play

Patterns and formulas Whiteboard exercise Play

Pictures taken from different helicopters Whiteboard exercise Play

Planes in the Cartesian coordinate system of 3-dimensional space Student activity Play

Points and their positions Whiteboard exercise Play

Process of vision Animation Play

Reading out the value of x from the picture Whiteboard exercise Play

Recognising patterns Student activity Play

Recognising patterns Slideshow Play

Sizes of objects Student activity Play

The logo for a series of Maths books Whiteboard exercise Play

The mechanism of vision Student activity Play

What shapes do you see? Student activity Play