Are your geometry students mystified every time you introduce them to sine, cosine and tangent? Use this three-page guided notes activity to clear up the confusion between the opposite and adjacent sides once and for all and get students started on the path to full understanding. This resource is an overview of the three basic trigonometric ratios (sine, cosine and tangent) and how they can be used to solve for missing sides and angles in right triangles. Clear, color-coded diagrams and step-by-step instructions are designed to address common misconceptions and will give students a solid foundation which will serve them well throughout their further study of trig. Instructions are given for using the trig ratios to solve for a missing side measure as well as for using the inverse trig functions to solve for a missing angle. Also included are the calculator keystrokes used for both situations. And once you’ve taught the lesson, there is a BONUS poster/anchor chart reinforcing the concepts learned from the classroom wall and making this sometimes confusing concept accessible to all. Designed to address Common Core Math Standards HSG-SRT.C.6, HSG-SRT.C.7 and HSG-SRT.C.8, this resource is perfect for students in Geometry or Algebra 2 but can be used for review or reteaching in higher-level math classes. Full key included. Error-free money-back guarantee!

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