Sines and Cosines, Part 1 (Periodic functions)
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http://www.projectmathematics.com/sincos1.htm  


Project MATHEMATICS!, California Institute of Technology  
A videotapeandworkbook module that explores a basic topic in high school mathematics in ways that cannot be done at the chalkboard or in a textbook. Sines and cosines occur as rectangular coordinates of a point moving on a unit circle, as graphs related to vibrating motion, and as ratios of sides of right triangles. They are related by reflection or translation of their graphs. Animations demonstrate the Gibbs phenomenon of Fourier series.  


Levels:  High School (912) 
Languages:  English 
Resource Types:  Multimedia, Video, Lesson Plans and Activities, Textbooks 
Math Topics:  Fourier Analysis/Wavelets, Functions, Graphing of Functions 
Math Ed Topics:  Audiovisual/Multimedia, Curriculum/Materials Development 
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