The stretching of a spring Animation Play

The structure of a lens Animation Play

The structure of a lens Student activity Play

The structure of a spherical mirror Animation Play

The structure of a spherical mirror Animation Play

The sum to n terms of an arithmetic progression Student activity Play

The trapezium Whiteboard exercise Play

The trapezium Student activity Play

The triangle Student activity Play

The triangle inscribed in a circle Whiteboard exercise Play

Time measures Student activity Play

Triangle Whiteboard exercise Play

Triangle Student activity Play

Triangle and circle Animation Play

Triangle and its area Simulation Play

Triangle and its area Simulation Play

Triangle and its area Simulation Play

Triangle and its area – activity Student activity Play

Triangles Whiteboard exercise Play

Triangles Student activity Play

Triangles – part III Student activity Play

Trigonometric ratios – problems Student activity Play

TV screens Whiteboard exercise Play

Two circles Simulation Play

Two cuboids Whiteboard exercise Play