# Ch 13: Introduction to Trigonometry Lesson Plans

The Introduction to Trigonometry chapter of this course is designed to help you plan and teach the basics of trigonometry in your classroom. The video lessons, quizzes and transcripts can easily be adapted to provide your lesson plans with engaging and dynamic educational content. Make planning your course easier by using our curriculum as a guide.

## Weekly Syllabus

Below is a sample breakdown of the Introduction to Trigonometry chapter into a 5-day school week. Based on the pace of your course, you may need to adapt the lesson plan to fit your needs.

DayTopicsKey Terms and Concepts Covered
Monday Overview and terminology Hands-on and graphical approaches to geometry problems, basic trig identities, cosine, sine, and volume equations for basic shapes
Tuesday Sines, cosines, tangents, and ratios Definition of sines, cosines and tangents; trigonometric similarity; trigonometric ratios; formulas for finding ratios; complementary angles; and calculating the cosine and sine of angles
Wednesday The Pythagorean Theorem a^2 + b^2 = c^2, hypotenuse, applying the theorem to determine the distance from one point to another, and SohCahToa
Thursday Triangles Practice problems with right triangles, plugging in the Pythagorean theorem for triangle equations, and finding a triangle's area through using sine
Friday Laws Law of Sines, a/sin A = b/sin B = c/sin C, Law of Cosines, a^2 = b^2 + c^2 - 2bc(cosA), c^2 = a^2 + b^2 - 2ab(cosC), and b^2 = a^2 + c^2 - 2ac(cosB)

10 Lessons in Chapter 13: Introduction to Trigonometry Lesson Plans
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.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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