A circle with centre at the origin Animation Play

Altering the x-scale Simulation Play

Altering the x-scale of the graph Simulation Play

Altering the x-scale – preliminary Student activity Play

Altering the x-scale – summary Student activity Play

Altering the y-scale of the graph Simulation Play

Altering the y-scale – summary Student activity Play

Arms of a parabola Simulation Play

Arms up and down Student activity Play

Cosine function as a parameter Animation Play

Example of solving linear inequality with the parameter Animation Play

Examples of curves Simulation Play

Finding the parameter Whiteboard exercise Play

Finding the value of the parameter Whiteboard exercise Play

Inequalities for quadratic functions in the vertex form Student activity Play

Intersection point of two straight lines Simulation Play

Intersection point of two straight lines Whiteboard exercise Play

Intersection points of two straight lines Student activity Play

Looking for the formula for a trigonometric function Student activity Play

Looking for the formula for a trigonometric function Simulation Play

Miscellaneous exercises Student activity Play

More one linear–one quadratic systems of equations Student activity Play

Parallel and perpendicular lines Student activity Play

Parallel and perpendicular lines Whiteboard exercise Play

Parametric equations of a circle Student activity Play