Using Right Triangles to Make the Unit Circle, Narrative Video, Section #2 - Section 2: Work Time

  Using Right Triangles to Make the Unit Circle, Narrative Video, Section #2
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Using Right Triangles to Make the Unit Circle

Unit 7: Trigonometry: The Unit Circle
Lesson 3 of 9

Objective: SWBAT elaborate on the connections between right triangles and the equation of a circle, laying groundwork for the extension of the definitions of trig ratios to the unit circle on the coordinate plane.

Big Idea: By looking for connections between right triangle trig and unit circle trig, we can discover some common sense embedded in both.

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Math, unit circle, right triangle, making sense, reference angle, radius, sine, cosine, period
  75 minutes
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