A big painting Whiteboard exercise Play

A central angle Whiteboard exercise Play

A central angle Student activity Play

A clock Animation Play

A closer look at the trigonometric ratios Student activity Play

A full angle Whiteboard exercise Play

A linear function – example 2 Student activity Play

A plane and the wind Whiteboard exercise Play

A plane and the wind Student activity Play

A straight angle Whiteboard exercise Play

Acute angles Student activity Play

Acute angles Whiteboard exercise Play

Adding polynomials Student activity Play

Adding polynomials – build up the result Whiteboard exercise Play

Adding polynomials – the missing coefficients Whiteboard exercise Play

Alternate angles Whiteboard exercise Play

An application Student activity Play

An application – a rotating airplane propeller Whiteboard exercise Play

An old gramophone record Whiteboard exercise Play

Angle sum of a triangle – exercises Student activity Play

Angles and parallel lines Whiteboard exercise Play

Angles and sides of triangles Student activity Play

Angles around a point Whiteboard exercise Play

Angles around a point Student activity Play

Angles in a triangle Whiteboard exercise Play