A tetrahedron Student activity Play

Angle of elevation Student activity Play

Angle of elevation Simulation Play

Constructions Simulation Play

Constructions Student activity Play

Constructions revisited Simulation Play

Constructions revisited Student activity Play

Elevations Simulation Play

Elevations Student activity Play

Height of a flagpole Animation Play

Representations Class activity Play

Representations Whiteboard presentation Play

Solving problems involving trigonometric ratios Class activity Play

Solving problems involving trigonometric ratios Whiteboard presentation Play

The angle of elevation Whiteboard exercise Play

The shape designed by Lena Whiteboard exercise Play