Basic Trigonometric Identities from Graphs

Have young mathematicians create new identities! They explore the even/odd, cofunction, and periodicity identities through an analysis of tables and graph. Next, learners discover the relationships while strengthening their understanding of the functions. 

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CCSS: Designed
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Instructional Ideas
  • Create collaborative groups and allow classes to work through the activities independently
  • Have learners start a record of the trigonometric identities studied
Classroom Considerations
  • Class members should have a strong understanding of the graph of a sine and cosine function
  • The 10th in a series of 19 lessons
  • Uses questioning techniques to lead learners to conclusions
  • Provides scaffolding instructions to differentiate
  • None