As human beings, we get used to "the way things are" really fast. But for designers, the way things are is an opportunity ... Could things be better? How? In this funny, breezy talk, the man behind the iPod and the Nest thermostat shares...

Pupil outcome: I can compare the power of different appliances and work out how much they cost to use. Key learning points: - Electrical appliances and devices use different amounts of energy each second, as indicated by their power...