Arithmetic mean – 'balancing point' of the data Student activity Play

Balancing point Animation Play

Basic shapes – a reminder Student activity Play

Basic shapes – a trapezium Whiteboard exercise Play

Basic shapes – a triangle Whiteboard exercise Play

Building a rectangle Whiteboard exercise Play

Calculating length Whiteboard exercise Play

Calculating length and distance Student activity Play

Calculating the area of a triangle Whiteboard exercise Play

Calculating the length of a side of a square Whiteboard exercise Play

Calculating the perimeter of a rectangle Whiteboard exercise Play

Calculating the perimeter of a square Whiteboard exercise Play

Calculating values of a function Student activity Play

Car headlights Animation Play

Central and inscribed angles Student activity Play

Central and inscribed angles on the same arc Whiteboard exercise Play

Centre of enlargement Student activity Play

Centre of enlargement Whiteboard exercise Play

Changing metric units Animation Play

Changing metric units of length Whiteboard exercise Play

Changing metric units of length Student activity Play

Changing metric units – the correct lengths Whiteboard exercise Play

Characteristic rays Animation Play

Checking the triangle in the coordinate system Whiteboard exercise Play

Choosing the best offer Student activity Play