Teaching The Unit Circle. The directions show students how to label their diagram. Teaching learning plan 9.
This is a great time to remind students of scale factors from geometry. Being so simple it is a great way to learn and talk about lengths and angles. The unit circle is a circle with a radius of 1.
I begin the development of the unit circle by have students relabel the special triangles so the hypotenuse is 1.
Recall from conics that the equation is x 2 y 2 1. The unit circle is a circle of radius 1 centered at the origin of the xy plane. The unit circle is a circle centered at the origin with a radius of 1. Sine cosine and tangent.
