The cosine rule Whiteboard presentation Play

The cosine rule Student activity Play

The cosine rule leading to two solutions Animation Play

The cosine rule – special case Animation Play

The counterexample Whiteboard exercise Play

The diagonal of a square Student activity Play

The distance between the points Animation Play

The distance formula Student activity Play

The distance formula – applications Student activity Play

The division of a triangle Student activity Play

The division of the triangle Whiteboard exercise Play

The enlargement of the triangle Animation Play

The equilateral triangle Student activity Play

The equilateral triangle and the square Whiteboard exercise Play

The exterior and interior angles of a triangle Whiteboard exercise Play

The fascinating polynomials (1 + x) n Student activity Play

The first tangent theorem – perpendicularity Student activity Play

The first tangent theorem – perpendicularity Whiteboard exercise Play

The formula for binomial coefficients Student activity Play

The formula for the area of a triangle Animation Play

The formula for the area of a triangle Animation Play

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

The formula for the volume of a prism Whiteboard exercise Play

The formula for the volume of a prism Student activity Play

The game of Change Places Animation Play