Emmanuel's, Lena's and Yoko's savings Whiteboard exercise Play

Example as a proof Student activity Play

Finding a simpler way to write the expression Student activity Play

Finding a simpler way to write the expression Whiteboard exercise Play

Forming code words Animation Play

Forming words Student activity Play

How many are there? Student activity Play

How many are there? Animation Play

How many are there? A more difficult problem Student activity Play

How resistance affects the way in which a conductor works Simulation Play

How resistance affects the way in which a conductor works Whiteboard exercise Play

How resistance affects the way in which a conductor works Student activity Play

Induced mutation – a way of increasing crop yield Student activity Play

Lena's bike Whiteboard exercise Play

Lena's birthday cake Whiteboard exercise Play

Lena's expenses Whiteboard exercise Play

Lena's income Whiteboard exercise Play

Lena's method Animation Play

Lena's number Whiteboard exercise Play

Lena's savings Whiteboard exercise Play

Lena's sequence Animation Play

Lena's temperature change Whiteboard exercise Play

Lena's thermometer Whiteboard exercise Play

Lena's way Animation Play

Malaria – the eternal serial killer Student activity Play