Identities in trigonometric equations Animation Play

Identity or not? Animation Play

Introducing a new variable Student activity Play

Introducing a new variable – exercises Student activity Play

Inverse trigonometric functions Whiteboard presentation Play

Inverse trigonometric functions Class activity Play

Justification of the cotangent function identity Animation Play

Justification of the tangent function identity Animation Play

Linear combinations of trigonometric functions Whiteboard exercise Play

Linear combinations of trigonometric functions Student activity Play

Looking for the formula for a trigonometric function Simulation Play

Looking for the formula for a trigonometric function Student activity Play

Maximum and minimum values of a trigonometric function Whiteboard exercise Play

Maximum and minimum values of a trigonometric function Student activity Play

Miscellaneous exercises Student activity Play

Moving graphs of trigonometric functions Student activity Play

Moving graphs of trigonometric functions Whiteboard exercise Play

New variable in a trigonometric equation Animation Play

New variable in a trigonometric equation Animation Play

Number of solutions of a trigonometric equation Whiteboard exercise Play

Other trigonometric functions Whiteboard presentation Play

Other trigonometric functions Class activity Play

Other trigonometric ratios Student activity Play

Other trigonometric ratios Whiteboard exercise Play

Parametric function involving the trigonometric functions and its derivative Whiteboard exercise Play