Trigonometry is a five-unit elective course for high school students who have successfully completed Algebra I, Geometry, and Algebra II. The materials cover a development of trigonometry from right triangle trigonometry to oblique triangles and the polar plane. Throughout the course, students will develop trigonometric formulas and use them in real-world applications, evaluate trigonometric proofs using complex trigonometric identities and solving trigonometric equations with regard to the unit circle.

The course seeks to help students expand their knowledge and skills so that they may achieve the following goals:

  • Use trigonometry as a tool for indirect measurement.
  • Model natural phenomenon with trigonometric functions.
  • Perform operations with complex numbers using trigonometry.
  • Use trigonometric identities to evaluate trigonometric proofs and solve trigonometric equations with regard to the unit circle.
  • Solve for unknown sides and angles of right and oblique triangles using right triangle trigonometry, law of sines and law of cosines.

In attaining these goals, students will begin to see the "big picture" of mathematics and understand how numeric, algebraic, and geometric concepts are woven together to build a foundation for higher mathematical thinking.

State: National
Grade Level: 9, 10, 11, 12
Category: Math
Course Length: Semester