The scalar product (1) Class activity Play

The scalar product (2) Whiteboard presentation Play

The scalar product of parallel and perpendicular vectors Student activity Play

The scalar product of parallel and perpendicular vectors Whiteboard exercise Play

The strength of electric field between two parallel plates Animation Play

The sum of the angles in the triangle Animation Play

The tangents to the circle that are parallel to the line Animation Play

Total current Animation Play

Total resistance Simulation Play

Total resistance Whiteboard exercise Play

Total resistance Student activity Play

Total resistance in a parallel circuit Student activity Play

Total resistance in a parallel circuit Whiteboard exercise Play

Transformations Whiteboard presentation Play

Transformations Class activity Play

Trapezium Student activity Play

Trapezium Whiteboard exercise Play

Triangle Student activity Play

Triangle Whiteboard exercise Play

Two mirrors Animation Play

Two parallel faces in the cuboid Whiteboard exercise Play

Two parallel symmetry lines Animation Play

Two parallel tangents to a circle Whiteboard exercise Play

Two reflections in two parallel mirror lines Whiteboard exercise Play

Vector equations of lines in 2-D Whiteboard presentation Play