The National Grid system Illustration Play

The National Grid system Student activity Play

The National Grid system Animation Play

The origin of spectral lines Animation Play

The path of a charge moving perpendicular to the filed lines Animation Play

The perpendicular bisector Student activity Play

The perpendicular bisector Whiteboard exercise Play

The perpendicular bisector Simulation Play

The perpendicular bisector in a circle Animation Play

The perpendicular bisector of a line segment Animation Play

The perpendicular bisector of a line segment – a reminder Student activity Play

The perpendicular bisectors Simulation Play

The points on a straight line Animation Play

The scalar product (1) Whiteboard presentation Play

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 shape of the field lines Animation Play

The shape of the magnetic field Animation Play

The spectral lines in the atomic spectrum of hydrogen Animation Play

The standard and the general form of the equation of a straight line Animation Play

The velocity of a charge moving along the filed lines Animation Play

Tools that involve moment Whiteboard exercise Play

Transformations Whiteboard presentation Play