Right Triangle Trigonometry
This is one lesson in a larger Unit Plan that introduces triangular relationships through the lens of building a treehouse with a variety of triangular characteristics. It has proofs, real world problems, constructions, a unit project, assessments, and more. In Lesson 14, “Trigonometry", students develop formulas for sine, cosine and tangent through discovery activities. This resource includes a variety of downloadable files, including student worksheets. The entire unit plan can be found here. This lesson plan has several activities involving Trig Functions. It includes a hands-on activity and real world problems. It also includes an activity to differentiate the lesson if needed for some students.
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