A line and a point of symmetry Animation Play

A linear function Animation Play

A linear function  y = ax + b Whiteboard exercise Play

A linear function  y = ax + b Student activity Play

A mass spectrometer Illustration Play

A mirror and a light bulb Simulation Play

A mirror and a light bulb Animation Play

A mirror and a light bulb Student activity Play

A moving car Animation Play

A perpendicular through a point off the line Student activity Play

A perpendicular through a point off the line Simulation Play

A perpendicular through a point on the line Student activity Play

A perpendicular through a point on the line Simulation Play

A point of tangency Whiteboard exercise Play

A point, a radius and an angle Animation Play

A scale Animation Play

A snail's trip Whiteboard exercise Play

A square in a coordinate system Whiteboard exercise Play

A state of balance Animation Play

A symmetrical triangle on squared paper Student activity Play

A triangle in a coordinate system Whiteboard exercise Play

A trip to the Moon Whiteboard exercise Play

A trip to the Moon Student activity Play

A trolley Animation Play

Aberration Animation Play