Students graph trigonometric functions. In this precalculus lesson, students identify the properties of secant ,cosecant and cotangent. They use the unit circle as their formula to graph and analyze these functions.

Students solve problems using the unit circle. In this precalculus instructional activity, students identify angles using the properties of the unit circle. They observe the trigonometric graphs and sine, cosine and tangent.

Pupils perform transformation on trig functions. In this precalculus lesson plan, students relate the London Eye observation wheel to trig function. They use a TI navigator to visualise the parameter created by this view and relate it to...