Points and a parabola Animation Play

Points satisfying a system of linear equations Whiteboard exercise Play

Polynomial equation Student activity Play

Polynomial inequalities Student activity Play

Polynomial inequalities Whiteboard exercise Play

Polynomial inequalities – reading from the graph Whiteboard exercise Play

Quadratic inequalities Whiteboard presentation Play

Quadratic inequalities Whiteboard exercise Play

Quadratic inequalities Whiteboard exercise Play

Quadratic inequalities Student activity Play

Quadratic inequalities Class activity 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 – using a parameter Animation Play

Reading graphs of linear functions Class activity Play

Reading graphs of linear functions Whiteboard presentation Play

Reading out from the graph the  x- and  y-intercepts of a linear function Simulation Play

Reading the solutions of the inequality from the graph Whiteboard exercise Play

Region on the plane Animation Play

Regions on the plane and inequalities Student activity Play

Regions on the plane and inequalities Student activity Play