Tangents Teacher Resources
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Trigonometric Functions of Acute Right Triangles
Students derive the six trigonometric functions. In this trigonometry lesson, students show their understanding of trigonometric functions as they relate the right triangles. They find the missing angles and side use trig ratios of sine,...
9th - 11th Math
Understanding Fundamental Trigonometric Identities
Students are introduced to the basic trigonometric identities. Using a diagram, they discover why the parts of the unit circle as named as they are and use equations to finalize the Pythagorean trigonometric identities. They also review...
9th - 12th Math
Solving Problems Involving Chords, Radii, Tangents, Secants, and Arcs Within the Same Circle
Tenth graders explore the concept of circles. In this circles lesson, 10th graders discuss settings in their lives where they encounter circles. Students work through problems in groups involving finding lengths of diameters, secants,...