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Intro to Trig

Subject MathGeometry
Grade Level Grades 9-12
Resource Type Handout, Lesson Plan
Standards Alignment
State-specific
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Students will investigate the relationship between the slope of a line and the slope angle.  They will use the concept of slope ratio and tangent function to determine missing measurements of a right triangle and solve everyday problems. They will extend their understanding of trigonometric ratios to include sine, cosine, and inverse trigonometric functions, and use these tools to solve for missing measurements in right triangles.  Students will model situations with right triangles and use all trigonometric ratios to solve everyday problems. This is adapted from CPM integrated 2 

Standards

Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.
Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
Explain and use the relationship between the sine and cosine of complementary angles.

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