Trigonometry

Lesson Prep

Lesson Details

• Duration: 50 minutes

• Learning Goal: Allow students to explore and discover trigonometric ratios and apply discoveries to solve problems.

Classwork

• Estimation – Perimeter 1

• Warm Up

• Notes Preparation Slides

• Notes

Credits

• This lesson was inspired by Kate Nowak, Lisa Bejarano, and New Visions.

Standards

Common Core

• HSG.SRT.C.6 – 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.

• HSG.SRT.C.8 – Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.

TEKS

• G.9(A) – determine the lengths of sides and measures of angles in a right triangle by applying the trigonometric ratios sine, cosine, and tangent to solve problems