Unit 4a - Intro to Trig

In this unit you will learn about the awesome intersection of geometry & algebra known as TRIGONOMETRY! You will learn all about angles and the ratios of lengths of sides in a right triangle and be able to use the super secret decoder ring known as the unit circle.

PreCalcUnit4aPlan

Notes

4-A: Angles & Their Measures

guided notes

4-B: Coterminal & Reference angles, Special Right Triangles, & the Unit Circle

guided notes

extra blank unit circle for practice

4-C: SOHCAHTOA


4-D: Using the Unit Circle


4-E: Sinusoidal Functions

guided notes

Resources