Angle sum of a triangle – observation and proof Student activity Play

Application of chlorine Slideshow Play

Banach's match problem Animation Play

Bridge team tournament Animation Play

Famous problems Student activity Play

Football league Whiteboard exercise Play

Football match Whiteboard exercise Play

How many more? Student activity Play

How many? A more difficult problem Student activity Play

How to match the moment of a force Animation Play

Match a triangle Whiteboard exercise Play

Match a triangle Student activity Play

Operating on square roots – revision Student activity Play

Other uses of halogens and their compounds Student activity Play

Problem with matches Whiteboard exercise Play

Simplification of square roots Animation Play

The Greens and The Blacks Whiteboard exercise Play

The Greens and The Reds Whiteboard exercise Play

The higher mean score Whiteboard exercise Play

The ice hockey league matches Whiteboard exercise Play

The mean Student activity Play

The mean and the median Student activity Play

The median Student activity Play

The modal value and the median Student activity Play

The sum of the angles in the triangle Animation Play