The Unit Circle Approach
The University of Idaho provides an online resource. These lectures are only viewable by those with
DSL or cable modems. Real Player, a
free download, is required to see these videos.
The
Unit Circle
Given
an angle, find the corresponding points on the unit circle
Evaluating
the Trig ratios at 0,90,180,270,360
Watch the lesson on MathTV.com. Click the play button in the lower left corner of the video lesson screen. It requires Real Player, a free download.
Dr. Jacci White of St. Leo University recorded this
video that also requires Real Player.