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This activity allows students to practice the Trigonometric Identities with the help of their peers. Students will specifically use the Pythagorean Identities and Reciprocal Identities.
In this People Search, begin by having students complete one problem on their own. Students may need 3 - 5 minutes to pick out their problem and show the proof. Then students will move around the room and find classmates that chose different problems on the sheet. In my own rules for People Searches, students must always write on their own paper. The other student can sign his or her name on the line, but otherwise, the student's paper should have only his or her handwriting on it. The other student is to teach how to solve the problem. This is a great exercise for students in using mathematical vocabulary! After each student has taught his or her problem, then the students will move on to find another partner.