How much/many has he got? Whiteboard exercise Play

How to calculate the power of an electric current Simulation Play

How to calculate the power of an electric current Student activity Play

How to calculate the power of an electric current Whiteboard exercise Play

How to calculate the work performed by an electric current Animation Play

How to draw a number line? Animation Play

How to save energy Student activity Play

How to save energy Simulation Play

How to transfer energy Simulation Play

How to transfer energy Student activity Play

How to transfer energy Animation Play

How to transfer energy Whiteboard exercise Play

How to use logarithms? Animation Play

How to write a number without too many zeros Student activity Play

How to write very big and very small numbers Student activity Play

Hydroelectric power station Illustration Play

In Antarctica and in the desert Whiteboard exercise Play

Increasing or decreasing? Student activity Play

Increasing or decreasing? Whiteboard exercise Play

Index laws for integer exponents Student activity Play

Index laws for integer exponents Whiteboard exercise Play

Index laws for negative exponents Student activity Play

Index laws for negative exponents – a power of 2 Whiteboard exercise Play

Index laws for positive exponents Student activity Play

Instantaneous power and mean power Whiteboard exercise Play