An object brought closer to the mirror Animation Play

Angle bisector Student activity Play

Angles around a point Whiteboard exercise Play

Angles around a point Student activity Play

Angles in a circle Student activity Play

Angles in a circle Whiteboard exercise Play

Angles on a straight line and angles round a point Student activity Play

Area under enlargement – a heptagon Whiteboard exercise Play

Areas of images of figures under enlargement Student activity Play

Arithmetic mean Animation Play

Arithmetic mean – 'balancing point' of the data Student activity Play

Arithmetic mean – 'balancing point' of the data Whiteboard exercise Play

Attraction between point masses and homogeneous balls Student activity Play

Attraction between point masses and homogeneous balls Whiteboard exercise Play

Balancing chemical equations Animation Play

Balancing chemical equations Whiteboard exercise Play

Balancing chemical equations Whiteboard exercise Play

Balancing chemical equations and stoichiometry Animation Play

Balancing chemical equations. Part 1 Student activity Play

Balancing chemical equations. Part 2 Student activity Play

Balancing equations for neutralisation reactions Animation Play

Balancing equations for neutralisation reactions Student activity Play

Balancing equations for neutralisation reactions Whiteboard exercise Play

Balancing equations for redox reactions in acidic solution using half-equations Animation Play

Balancing equations for redox reactions in acidic solution using half-equations Whiteboard exercise Play