The cotangent and the cosecant Animation Play

The cotangent and the cosecant Student activity Play

The graph of the sine function Student activity Play

The identities of the trigonometric functions Animation Play

The Pythagorean identity Whiteboard exercise Play

The Pythagorean identity Whiteboard exercise Play

The Pythagorean identity revisited Student activity Play

The tangent and cotangent functions revisited Student activity Play

The tangent and the cotangent are inversely proportional Student activity Play

The tangent and the secant Animation Play

The tangent and the secant Student activity Play

Trigonometric identities – investigations Student activity Play

Trigonometric identities – investigations Simulation Play

Trigonometric identity for tangent and cotangent Simulation Play

Using the difference identity for the tangent Whiteboard exercise Play