The Trigonometric Ratios: Lesson

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SOH, what is this thing called trigonometric ratios? A section of an extensive playlist on geometry identifies the adjacent and opposite sides in relationship of an angle. Using the identified sides, the video defines the sine, cosine, and tangent of an angle.

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CCSS: Adaptable
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Instructional Ideas
  • Have class members create a method to remember the definitions of the trigonometric ratios
Classroom Considerations
  • Individuals should know the parts of a right triangle
  • Expects students are familiar with the Pythagorean Theorem
  • Links to more trigonometric resources by CK-12
  • Shows the work needed to calculate the trigonometric values
  • None