Lesson Plan: Trigonometric Functions’ Values with Reference Angles Mathematics
This lesson plan includes the objectives and prerequisites of the lesson teaching students how to find reference angles and how to use them to find the values of trigonometric functions.
Objectives
Students will be able to
- identify the principal angle for a given angle,
- use principal angles to find the value of trigonometric functions where the angles are outside of the range between and or 0 radians and radians.
Prerequisites
Students should already be familiar with
- evaluating trigonometric functions where the angles are in standard positions.