A caterpillar is going for a walk Student activity Play

A caterpillar is going for a walk Whiteboard exercise Play

A function – reminder Student activity Play

A graph of a linear function Animation Play

A linear function  y = ax + b Student activity Play

A linear function  y = ax + b Whiteboard exercise Play

A snail is climbing up Whiteboard exercise Play

A snail is going for a walk Student activity Play

A snail is going for a walk Whiteboard exercise Play

A term's place in a sequence Whiteboard exercise Play

A term's place in a sequence Student activity Play

Add and subtract similar terms Student activity Play

Add and subtract similar terms Whiteboard exercise Play

All prices down by 20%! Animation Play

All prices down! Whiteboard exercise Play

All prices down! Student activity Play

Animals moving with a constant speed Whiteboard exercise Play

Animals moving with a constant speed Student activity Play

Bus fares going up Animation Play

Buying a ticket Student activity Play

Buying a ticket Whiteboard exercise Play

Calculating the nth term of a sequence Student activity Play

Calculating the nth term of a sequence Simulation Play

Calculating the square of a sum Simulation Play

Caterpillar's walk Animation Play

Changing  +  to  – Whiteboard exercise Play

Changing  –  to  + Whiteboard exercise Play

Common factor Whiteboard exercise Play

Common factor Student activity Play

Coordinates of points Animation Play