Learn about the unit circle, its relation to the unit circle, and the meaning behind trigonometric functions. 

Learn about trig functions, how to graph them, how to think about them, and how to manipulate them. Learn how to solve them and control them. 

Learn about the proper way to complete proofs, about the trigonometric identities, and how to manipulate trig functions to fit your needs in each problem. 

Learn about double angle and half angle formulas, how you can use them to solve trigonometric equations, and how they can help you find measurements of different shapes.