The content of a problem as an algebraic expression Student activity Play

The content of a sentence as an algebraic expression Animation Play

The content of a sentence as an algebraic expression Student activity Play

The content of a sentence as an algebraic expression Animation Play

The cosine rule leading to two solutions Animation Play

The equations and their solutions Whiteboard exercise Play

The letters in algebraic expressions, formulas, equations and functions Student activity Play

The letters in algebraic expressions, formulas, equations and functions Whiteboard exercise Play

The number of solutions Whiteboard exercise Play

The number of solutions Animation Play

The number of solutions of a quadratic equation Student activity Play

The number of solutions of a quadratic equation Simulation Play

The number of solutions of a quadratic equation Student activity Play

The number of solutions of a quadratic equation Whiteboard exercise 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 simpler way to write algebraic expressions Whiteboard exercise Play

The solutions of a quadratic equation Whiteboard exercise Play

The value of an algebraic expression Student activity Play

The value of an algebraic expression Whiteboard exercise Play

The value of an algebraic fraction Animation Play

Transformation of algebraic equations Whiteboard presentation Play

Transformation of algebraic equations Class activity Play