A half-plane as a graphical solution of an inequality Whiteboard exercise Play

A half-plane as a graphical solution of an inequality Student activity Play

A path around a park pond Animation Play

A rational expression and its simpler form Animation Play

A rational function Student activity Play

A rectangular fence Animation Play

Addition and subtraction of square roots Whiteboard exercise Play

An application of half-planes in economy Animation Play

An example of an exponential inequality Animation Play

An inequality in a coordinate system Animation Play

Body mass index Animation Play

Body mass index – activity Whiteboard exercise Play

Can the rational expression be simplified? Whiteboard exercise Play

Changing the subject of the formula – more complex examples Student activity Play

Combined quadratic inequalities Student activity Play

Combined quadratic inequalities Whiteboard exercise Play

Common part of the half planes Whiteboard exercise Play

Coordinates of midpoints of line segments Whiteboard presentation Play

Coordinates of midpoints of line segments Class activity Play

Defining half-planes Whiteboard exercise Play

Defining half-planes – a simple case Student activity Play

Defining inequalities in a coordinate system Student activity Play

Defining inequalities in a coordinate system Simulation Play

Defining inequality in a coordinate system Simulation Play

Describing class intervals Student activity Play