Exact values of trigonometric ratios for selected angles Animation Play

Exact values of trigonometric ratios for selected angles Student activity Play

Example of introducing a new variable Animation Play

Example of solving a trigonometric equation Animation Play

Example of solving linear inequality with the parameter Animation Play

Exponential inequality Animation Play

Factorisation and roots of polynomials Whiteboard presentation Play

Factorisation and roots of polynomials Class activity Play

Facts and assumptions Student activity Play

Facts and assumptions – algebraic inequalities Whiteboard exercise Play

Find the right region Student activity Play

Finding a half-plane Student activity Play

Finding a half-plane Whiteboard exercise Play

Finding equal expressions Whiteboard exercise Play

Finding graphical solutions of inequalities Whiteboard exercise Play

Finding graphical solutions of inequalities Student activity Play

Finding representations of trigonometric functions Simulation Play

Finding solutions of an equation Whiteboard exercise Play

Finding solutions of inequalities Student activity Play

Finding solutions of inequalities Whiteboard exercise Play

Finding the cosine and the tangent of an angle Animation Play

Finding the cosine of an angle Whiteboard exercise Play

Finding the exact values of trigonometric ratios for selected angles Student activity Play

Finding the graphical solution of inequalities Whiteboard exercise Play

Finding the graphical solution of inequalities Student activity Play