The number of solutions of a quadratic equation Student activity Play

The number of solutions of a quadratic equation Simulation Play

The quadratic formula Class activity Play

The quadratic formula Whiteboard presentation Play

The reactions between some cations and hydroxide solutions Student activity Play

The reactions between some cations and hydroxide solutions Whiteboard exercise Play

The solutions of a quadratic equation Whiteboard exercise Play

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

The standard equation of the straight line Animation Play

The standard form of the equation of a straight line Whiteboard exercise Play

The standard form of the equation of a straight line Student activity Play

The standard index form on the calculator display Student activity Play

The standard index form on the calculator display Whiteboard exercise Play

They displace the ions of the metal Whiteboard exercise Play

Types of electrolytes Animation Play

Types of ion present in aqueous solutions Student activity Play

Types of ion present in aqueous solutions Whiteboard exercise Play

Types of salt Illustration Play

Using mean bond enthalpies in calculations. Part 1 Student activity Play

Using mean bond enthalpies in calculations. Part 2 Student activity Play

Using standard enthalpies of combustion Animation Play

Using standard enthalpies of formation Animation Play

Using ΔH°f and ΔH°c to determine standard enthalpies of reaction Student activity Play

Variance and standard deviation Whiteboard exercise Play

Water solutions of certain metal salts are acidic Animation Play