Trigonometric Identities Teacher Resources
Find Trigonometric Identities lesson plans and worksheets
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Trigonometric Ratios: Sine
6 mins 10th - 12th CCSS: Adaptable
What happens when you don't have enough information to use the Pythagorean Theorem? Time for some trig! The second lesson in a series of four introduces the definition of sine, teaches how to find the sine ratio of a right triangle, and...
Chain Rule for Derivatives, with Trig Functions
6 mins 11th - Higher Ed
Break the chain in finding derivatives of trigonometric functions. The short video provides a demonstration of finding the derivative of a trigonometric function where the argument is a function. The 12th video in a series of 31 focuses...
SOHCAHTOA - Finding Missing Sides Part 1
5 mins 9th - 12th CCSS: Adaptable
Explore the meaning and application of the three trigonometric ratios. A thorough video reviews the trig ratios and then shows how to apply them in triangle problems. The instructor demonstrates several examples finding both side and...
Decoding Basic Trigonometric Ratios
3 mins 9th - 12th CCSS: Adaptable
Demonstrate the calculator keystrokes necessary for finding a measure of an angle using trigonometry. A straight forward lesson explains how to calculate an angle measure given a sine, cosine, or tangent ratio. The narrator discusses...