Diagonals of the trapezium Student activity Play

Enlarging the right-angled triangle Simulation Play

Enlarging the right-angled triangle – the basic property Simulation Play

Exact values of trigonometric ratios for selected angles Animation Play

Exact values of trigonometric ratios for selected angles Student activity Play

Extending the trapezium rule Student activity Play

Extending the trapezium rule Whiteboard exercise Play

Figures in coordinates – part 2 Student activity Play

Figures in the Cartesian coordinate system Student activity Play

Finding angles Student activity Play

Finding areas Student activity Play

Finding areas Whiteboard exercise Play

Finding heights Student activity Play

Finding lengths Student activity Play

Finding sides Student activity Play

Finding the area of a trapezium Whiteboard exercise Play

Finding the area using the trapezium rule Whiteboard exercise Play

Finding the length of a side of a right-angled triangle Whiteboard exercise Play

Finding the measure of an angle of a right-angled triangle Whiteboard exercise Play

Finding the volume of a frustum of a cone Whiteboard exercise Play

Frustum of a cone Student activity Play

Going further with the trapezium rule Student activity Play

How do we enlarge the shape? Animation Play

Isosceles trapeziums Simulation Play

Line of reflection symmetry Student activity Play