The Pythagorean identity revisited Student activity Play

The quickest method Animation Play

The reaction between acids and carbonates or hydrogencarbonates Student activity Play

The reaction between calcium carbonate and hydrochloric acid Animation Play

The reaction between nitrogen and hydrogen Animation Play

The reaction between sodium and water Animation Play

The reaction between sulphur dioxide and chlorine in an aqueous Animation Play

The reaction of alkanes with halogens Whiteboard exercise Play

The reaction of alkanes with halogens Student activity Play

The reaction of sodium hydroxide solution with a solution of a zinc(II) salt Whiteboard exercise Play

The recipe Animation Play

The relationship between air pressure and altitude Student activity Play

The relationship between drag and path of motion Student activity Play

The relationship between drag and path of motion Whiteboard exercise Play

The relationship between lift and velocity Animation Play

The relationship between lift and velocity Student activity Play

The roots of a polynomial equation Student activity Play

The roots of a polynomial equation Whiteboard exercise Play

The roots of a quadratic equation Animation Play

The roots of an equation Simulation Play

The same solution of two systems of linear equations Whiteboard exercise Play

The same values of the tangent function Whiteboard exercise Play

The same values of trigonometric functions Whiteboard exercise Play

The shape of the graph of the tangent function Whiteboard exercise Play

The sides of the triangles – trigonometric ratios for selected angles Whiteboard exercise Play