Teacher Resources for Instructional Planning


Algebra 2 with Trigonometry Std 10: Solve general triangles, mathematical problems, and real-world applications using the Law of Sines and the Law of Cosines.

Lesson Plans Chicago Public Schools The lessons for days 144 to 147 provide extensive work with the Laws of Sines and Cosines with real world and computer applications. Chicago Public Schools Advanced Algebra lessons for days 148 and 149 provide several examples with the Laws of Sines and Cosines. Law of Sines This is a straight-forward lesson on the derivation and use of the law of sines with pictures and examples. Law of Cosines This is a straight-forward lesson on the derivation and use of the law of cosines with pictures and examples.

Resources: Japanese Math Applets Java applet that demonstrates a visual justification for the law of sines. Japanese Math Applets Java applet that demonstrates a visual proof for the law of cosines. Japanese Math Applet main menu 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. The links below cannot be accessed at school, but should be accessible from home. Triangle Trigonometry Unit This is an online textbook written by an algebra 2 teacher that has lessons and mini-quizzes for everything.
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