This is a complete lesson plan introducing the tangent ratio and guiding students to find the length of a side of a right triangle using tangent. The inverse tangent ratio is also covered. This lesson follows my lesson plans: "Introduction to Trigonometry," "The Sine Ratio Lesson Plan," and "The Cosine Ratio Lesson Plan," which are also posted in my store.
If you prefer to teach the three ratios in one lesson, I have the lesson "Sine, Cosine & Tangent" posted at:
This lesson includes an opening activity, minilesson with guided steps through the process, examples, class activities and a worksheet for homework. Answer keys included.
Common Core standards included on cover page for High School: Geometry.
NOTE: You may need Equation Editor or MathType to make changes to some of the fractions or symbols.