The speed of runners Animation Play

The steepest part of a road Animation Play

The synthesis of water Animation Play

The tangent and coordinates of the points Animation Play

The tangent as a coordinate Animation Play

The tangent of an arbitrary angle Student activity Play

The three circles Whiteboard exercise Play

The unit of atomic mass Animation Play

Three bottles Whiteboard exercise Play

Transformer Whiteboard presentation Play

Transformer Class activity Play

Transformer Whiteboard presentation Play

Transformer Class activity Play

Trigonometric ratios Whiteboard exercise Play

Trigonometric ratios in a right-angled triangle Whiteboard exercise Play

Trigonometric ratios in a right-angled triangle Class activity Play

Trigonometric ratios in a right-angled triangle Whiteboard presentation Play

Trigonometric ratios in a right-angled triangle Student activity Play

Trigonometric ratios – a lighthouse Whiteboard exercise Play

Trigonometric ratios – distance to a star Whiteboard exercise Play

Trigonometric ratios – problems Student activity Play

Trigonometric ratios – tangent Whiteboard exercise Play

Trigonometric ratios – the altitude of the Sun Whiteboard exercise Play

Trigonometric ratios – the angles of the triangle Whiteboard exercise Play

Trigonometry of a general angle Class activity Play