Trigonometric ratios – a lighthouse Whiteboard exercise Play

Trigonometric ratios – distance to a star Whiteboard exercise Play

Trigonometric ratios – problems Student activity Play

Trigonometric ratios – tangent Whiteboard exercise Play

Trigonometric ratios – the altitude of the Sun Whiteboard exercise Play

Trigonometric ratios – the angles of the triangle Whiteboard exercise Play

Trigonometric tables Chart Play

Trigonometry of a general angle Whiteboard presentation Play

Trigonometry of a general angle Class activity Play

Types of equations Whiteboard exercise Play

Typical problems with quadratic equations Whiteboard exercise Play

Typical problems with quadratic equations Student activity Play

Unique solution of the system of equations with parameter Whiteboard exercise Play

Use of a calculator Class activity Play

Use of a calculator Whiteboard presentation Play

Using equations to calculate masses Whiteboard exercise Play

Using equations to calculate masses Student activity Play

Using graphs (1) Class activity Play

Using graphs (1) Whiteboard presentation Play

Using graphs (2) Whiteboard presentation Play

Using graphs (2) Class activity Play

Using linear equations to solve practical problems Student activity Play

Using new variables to solve trigonometric equations Whiteboard exercise Play

Using systems of inequalities to solve quadratic equations with a parameter Student activity Play

Using the calculator Student activity Play