Sines and Cosines, Part 3 (Addition formulas)
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|Project MATHEMATICS!, California Institute of Technology|
|A videotape-and-workbook module that explores a basic topic in high school mathematics in ways that cannot be done at the chalkboard or in a textbook. Animation relates the sine and cosine of an angle with chord lengths of a circle, as explained in Ptolemy's Almagest. This leads to elegant derivations of addition formulas, with applications to simple harmonic motion.|
|Levels:||High School (9-12)|
|Resource Types:||Multimedia, Video, Lesson Plans and Activities, Textbooks|
|Math Topics:||Conic Sections and Circles, History and Biography, Trigonometry|
|Math Ed Topics:||Audiovisual/Multimedia, Curriculum/Materials Development|
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