The critical angle Whiteboard exercise Play

The critical angle Whiteboard exercise Play

The derivation of Snell's Law Animation Play

The direction of the Earth's rotation Whiteboard exercise Play

The domain of the trigonometric functions Animation Play

The Doppler effect Simulation Play

The Doppler effect Student activity Play

The Earth's gravitation Animation Play

The Earth's rotation Animation Play

The enlargement of the triangle Animation Play

The equilibrium of the moments of the forces Animation Play

The exterior and interior angles of a quadrilateral Whiteboard exercise Play

The exterior and interior angles of a triangle Whiteboard exercise Play

The exterior angle of a regular polygon Student activity Play

The exterior angle of a regular polygon – proof (1) Animation Play

The exterior angle of a regular polygon – proof (2) Animation Play

The first tangent theorem Animation Play

The first tangent theorem – perpendicularity Whiteboard exercise Play

The first tangent theorem – perpendicularity Student activity Play

The floating buoy Animation Play

The force is at some angle to the direction of the movement Animation Play

The force of gravity Animation Play

The forces that need to be exerted on a barrel to pull it up Whiteboard exercise Play

The formula for the area of a triangle Animation Play

The formula for the space diagonal of a cube Student activity Play