A cyclist Animation Play

A diode in a bike Student activity Play

A diode in a bike Animation Play

A diode in a bike Whiteboard exercise Play

A ten-day bike trip Whiteboard exercise Play

Aeroplane and resistance Animation Play

Air resistance Student activity Play

Air resistance (drag) Student activity Play

Average speed Student activity Play

Bike wheel Animation Play

Changing the subject Student activity Play

Determining bike speed Animation Play

Emmanuel's and Lena's number Whiteboard exercise Play

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

Examples of populations and samples Animation Play

Friction Student activity Play

Friction in a bike Whiteboard exercise Play

Frontal area Student activity Play

Frontal area Slideshow Play

Introduction to inverse proportion 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