Lesson Plan

Unit Circle: Special Angles—Just Know One

Curated and Reviewed by Lesson Planet

It's all about the patterns! Young scholars learn that the unit circle repeats itself in all four quadrants. Using these patterns, they evaluate the sine, cosine, and tangent of special angles.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Have pupils draw the special right triangles in the first quadrant as reference in the other three quadrants
  • Following the lesson, have pupils evaluate trigonometric expressions of special angles using whiteboards until all can answer efficiently
Classroom Considerations
  • Expects a solid understanding of special right triangles relationships
Pros
  • Includes intervention strategies for struggling individuals
  • Provides all necessary handouts and resources
Cons
  • None
Common Core