# CK-12 Texas Instruments Trigonometry Teacher's Edition

**At Grade**Created by: CK-12

## Table of Contents

- 1. TE Introduction to Trigonometry - TI
A brief explanation of the following lessons.

- 2. TE Trigonometry and Right Angles - TI
This chapter introduces students to trigonometric functions, triangle ratios, and the unit circle with some of its applications.

- 3. TE Circular Functions - TI
This chapter examines graphs of sine and cosine functions. These concepts are explored through data sets, sinusoidal regression, vertical shifts, and phase shifts.

- 4. TE Trigonometric Identities - TI
This chapter allows students to derive trigonometric identities algebraically and on a graphing calculator. The lesson also presents angle sum and difference exercises.

- 5. TE Inverse Functions and Trigonometric Equations - TI
This chapter focuses on graphing the six inverse trigonometric functions in addition to providing exercises for solving trigonometric equations with a graphing calculator.

- 6. TE Triangles and Vectors - TI
This chapter allows students to use their graphing calculators to determine the relationship between Heron’s formula and the basic area formula. Students are also tasked with deriving and using the Law of Sines.

- 7. TE Polar Equations and Complex Numbers - TI
This chapter develops a student’s knowledge of polar coordinates by graphically and algebraically finding slopes on a polar graph. Additionally, students practice representing complex numbers in the complex plane as points and vectors.