# Ch 33: MTEL Middle School Math/Science: Trigonometric Identities

Let us review with you the many different kinds of trigonometric identities and how to use them to solve trigonometry problems and prepare for related questions on the MTEL Middle School Mathematics/Science exam.

## MTEL Middle School Math/Science: Trigonometric Identities - Chapter Summary

Use the video lessons in this chapter to help you feel equipped to successfully answer questions about trigonometric identities on the MTEL Middle School Mathematics/Science exam. By the end of this chapter you will have reviewed:

• The definition of and uses for trigonometric identities
• How different identities are derived and verified
• The basic and alternative trigonometric identities
• Half- and double-angle identities
• Applications of product-to-sum and sum-to-product identities
• How to use sum and difference identities
• Pythagorean identities
• Reciprocal identities

Professional instructors have developed these lessons to assist you in successfully reviewing and retaining the information. The video lessons are provided for visual learning. A timeline can be found underneath the video so that you can return to a particular portion of the lesson whenever you need to. Take the self-assessment quiz at the end of each lesson to prepare for questions you may see on the exam.

### MTEL Middle School Math/Science: Trigonometric Identities Objectives

The MTEL Middle School Mathematics/Science exam is required for aspiring educators who want to teach these subjects in the state of Massachusetts. The certification exam can be taken toward the end of your bachelor's program or after you graduate. The lessons in this chapter help you prepare for the portion of the exam that tests your knowledge of trigonometry, calculus and discrete math. This subarea of the exam accounts for 5% of the total score.

The MTEL Middle School Mathematics/Science exam contains 100 multiple-choice questions (accounting for 80% of the total score) and 2 open-response questions (accounting for 20% of the total score).

12 Lessons in Chapter 33: MTEL Middle School Math/Science: Trigonometric Identities
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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