The tangent – reducing angles Student activity Play

The tangents to the circle that are parallel to the line Animation Play

The triangle Student activity Play

The vertex of a parabola Student activity Play

The weight in pounds and the weight in kilograms Whiteboard exercise Play

Torus Animation Play

Total energy Student activity Play

Transforming graphs of trigonometric functions (2) Whiteboard presentation Play

Transforming graphs of trigonometric functions (2) Class activity Play

Transposing the formula Student activity Play

Transposing the formula Whiteboard exercise Play

Transposing the formula Whiteboard exercise Play

Travelling with a constant speed Student activity Play

Triangle and circle Animation Play

Triangles Student activity Play

Trigonometric formulas Whiteboard exercise Play

Trigonometric functions Student activity Play

Two points Student activity Play

Using a formula Whiteboard exercise Play

Using formulas Animation Play

Using Heron's formula Animation Play

Using the distance formula Animation Play

Using the formula for linear regression Whiteboard exercise Play

Using the formula for population variance Animation Play

Using the formula for square of a difference Simulation Play