Trigonometric Identities Math LibIn this activity, students will practice using trigonometric identities to simplify expressions as they rotate through 10 stations. This includes the Pythagorean theorem, reciprocal, double angle, and sum and difference of angle identities.The answer at each station will give them a piece to a story (who, doing what, with who, where, when, etc.) This is a much more fun approach to multiple choice, and the students adore reading the story to the class. They get ve