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Lesson Plan

Illustrative Mathematics: F Tf Special Triangles 1

Curated by ACT

Using known facts about the unit circle and isosceles triangles together with the Pythagorean Theorem, students can derive the sine and cosine of special angles. Aligns with HSF-TF.A.3.

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CCSS: Adaptable
Concepts
unit circle, pythagorean theorem, special right triangles
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Additional Tags
cc by-nc-sa 4.0, creative commons attribution-noncommercial-sharealike 4.0, hsf-tf.a.3, illustrative mathematics, illustrative mathematics: f-tf special triangles 1, oh.math.hsf.tf.3, special triangles 1, use special triangles to determine geometrically the values of sine, cosine, tangent
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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional|practice