The structure of the periodic table Whiteboard exercise Play

The structure of the periodic table Student activity 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 trends in the properties of the elements in Period 3 Whiteboard presentation Play

The trends in the properties of the elements in Period 3 Class activity 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

Trend in the reactivity of halogens Animation Play

Trigonometric ratios 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 Whiteboard exercise 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