The critical angle Whiteboard exercise Play

The critical angle Whiteboard exercise Play

The derivation of Snell's Law Animation Play

The domain of the trigonometric functions Animation Play

The enlargement of the triangle 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 exterior angles of a polygon Student activity Play

The exterior angles of an n-sided polygon Whiteboard exercise Play

The fence problem Student activity Play

The figures under enlargements Whiteboard exercise Play

The first tangent theorem Animation Play

The first tangent theorem – perpendicularity Student activity Play

The first tangent theorem – perpendicularity Whiteboard exercise Play

The floating buoy Animation Play

The focal point of a concave mirror Simulation Play

The focal point of a concave mirror Student activity Play

The force is at some angle to the direction of the movement 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 four quadrants Student activity Play

The functions  y = x 2  and  y = –x 2 Student activity Play