Education Technology

Precalculus: Trigonometric Patterns
by Texas Instruments - Bell Ringer Lesson

Published on February 15, 2011


Students use the unit circle to examine patterns in the six trigonometric functions.

Key Steps

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    Students are given the definitions of sine, cosine, and tangent and how they relate to the unit circle. Then, students are asked to use the unit circle to find the values of the functions at various angle measures to find patterns for each function.

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    Students will also explore secant, cosecant, and cotangent by finding the reciprocals of the earlier values.