**INSTRUCTIONAL UNIT: A CRASH COURSE IN TRIGONOMETRY**

This trigonometry module consists of sections in PDF format as well as supporting documents. These documents are GSP animation files that I made. While you read the sections in PDF format, please refer to these supporting documents when necessary: This is essential for a full understanding of the subject matter.

**PDF FILES:**

1. UNIT CIRCLE - ANGLE MASURE UNITS

2. TRIGONOMETRIC FUNCTIONS and TABLES

3. PERIODIC FUNCTIONS - GRAPHS OF TRIGONOMETRIC FUNCTIONS - INVERSE TRIGONOMETRIC FUNCTIONS

4. THREE TRIGONOMETRIC THEOREMS IN TRIANGLES

5. SUM and DIFFERENCE FORMULAS

**SUPPORTING DOCUMENTS:**

1. Point C traces graph of cosine while point P is animated on the unit circle

2. Points S traces graph of sine while point P is animated on the unit circle

3. Points T traces graph of tangent while point P is animated on the unit circle

4. Point J traces graph of cotangent while point P is animated on the unit circle

5. Point C' traces graph of arccosine while point P is animated on the unit circle

6. Points S' traces graph of arcsine while point P is animated on the unit circle

7. Points T' traces graph of arctangent while point P is animated on the unit circle

8. Point J' traces graph of arccotangent while point P is animated on the unit circle