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6. Trigonometric Identities

6.2 Sum, Difference, and Double-Angle Identities

Class Notes

The McGraw-Hill Ryerson PreCalculus 12 Text is used as the Main Resource.

Assignments in the Powerpoint Lesson Plans refer to pages and questions in the PreCalculus 12 text.

 

 6.2 Sum Difference and Double Angle Identities 

 

Pedagogical Shifts: TRANSFORM, moving from Traditional to Student-Centered

Shifting from Memorization to Higher-level Thinking

 Sum, Difference and Double Angle Identities, Find the Error

In this activity, students are given worked out solutions to questions involving sum, difference and double angle identities. The worked out solutions have an error in them. Students must identify the error and provide a correct complete solution. I like that this activity allows students to think of this style of question in a scaffolded manner. The Mathematical Processes that are involved in this activity include using communication in order to learn and express understanding and develop mathematical reasoning.

  Trigonometry Identity Jigsaw Puzzle

Students must cut apart 16 square and reassemble a 4 by 4 square where the adjacent sides are equivalent expressions.

 6.2 Sum Difference and Double Angle Identities Extra Practice new