A block on a disc Whiteboard exercise Play

A change in the intensity of X-radiation Whiteboard exercise Play

A converging lens Animation Play

A flower show Animation Play

A gallery of curves Simulation Play

A grey body Student activity Play

A grey body Animation Play

A square circumscribed about a circle Student activity Play

Acceleration Animation Play

Activities Student activity Play

Adding polynomials Student activity Play

Adding polynomials – the missing coefficients Whiteboard exercise Play

Angle of inclination Animation Play

Application of the correlation coefficient Whiteboard exercise Play

Applying the formula for binomial coefficients Whiteboard exercise Play

Applying the formula for linear regression Whiteboard exercise Play

Arbitrary transformations Animation Play

Are they similar? Student activity Play

Arms of a parabola Simulation Play

Arms up and down Student activity Play

Axis of symmetry and the factor form of a quadratic function Student activity Play

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

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

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

Balancing equations for redox reactions in alkaline solution using half-equations Student activity Play