Teacher Resources for Instructional Planning


Precalculus Std 7: Solve trigonometric equations and inequalities using sum, difference, and half- and double-angle identities. Verifying trigonometric identities

Lesson Plans Chicago Public Schools This is a collection of structured daily lesson plans complete with worksheets and assessments. (Day 131) Great Site of Trigonometric Identities An online tutorial that walks students through the steps of proving trigonometric identities. This is adaptable to a lesson plan. There are several pages with all sorts of explanation with exercises. BBC Lessons This Guru lesson works with the most basic trig identities providing interactive examples. Chicago Public Schools Lessons for days 134 and 135 deal with manipulating the basic trig identities to verify new identities. Significance of the identities are examined with the graphing calculators. Chicago Public Schools Lessons for days 136 and 137 derive the sum and difference identities and derive further identities from them.

Resources: 60 Verified Trigonometric Identities If you're having trouble with trigonometric identities, perhaps this page can help. Problems involving trigonometric identities are more "math puzzles" than math problems. Japanese Math Applets This is a set of applets that visually demonstrates the geometric relationships between and among the sines and cosines of angles as well as a few identities.
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