Multiplying some logarithms Animation Play

Octane ratings of some combustible substances Audio text Play

Physical properties of some alkanes Chart Play

Polynomial inequalities Whiteboard exercise Play

Polynomial inequalities Student activity Play

Polynomial inequalities – reading from the graph Whiteboard exercise Play

Properties of some acids Chart Play

Quadratic equations and inequalities Whiteboard exercise Play

Quadratic inequalities Whiteboard exercise Play

Quadratic inequalities Student activity Play

Quadratic inequalities Whiteboard presentation Play

Quadratic inequalities Whiteboard exercise Play

Quadratic inequalities Class activity Play

Quadratic inequalities and geometry Whiteboard exercise Play

Quadratic inequalities and geometry Student activity Play

Quadratic inequalities and geometry – a tunnel Whiteboard exercise Play

Quadratic inequalities with one and with two unknowns Student activity Play

Quadratic inequalities with one and with two unknowns Animation Play

Quadratic inequalities with two unknowns Simulation Play

Quadratic inequalities with two unknowns Whiteboard exercise Play

Quadratic inequalities – activity Whiteboard exercise Play

Quadratic inequalities – using a parameter Animation Play

Regions on the plane and inequalities Whiteboard exercise Play

Regions on the plane and inequalities Student activity Play

Regions on the plane and inequalities Student activity Play