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Trigonometric Functions For Math Review
Purpose
To remind students of the definitions of sine and cosine.
Equipment
Disc-mounting rod assembly, wood stand with table clamp, metal stand with right-angle clamp, two stick pointers, nail; assembled as photographed on request.
Setup Time
5 minutes.
Images
Description
Slowly rotate the unit circle of radius R. Students can easily observe the opposite side and the adjacent side.as the angle is changed. This provides a dynamic sense of the values of the sine and cosine in the first two quadrants.◙
References
(PIRA unavailable.)