I used different methods with each of my three classes and the best method I thought was to work with one triangle (I used the 45-45-90) all the way around the circle filling in the degrees and the coordinates. Then I filled in the first quadrant with the other two triangles and let the students work their way around the circle based on what we had in the first quadrant (again just the degrees and ordered pairs). We then came back and worked with converting the degrees to radians.
The templates can be found at this link (thanks to the original blogger - Math Teacher Mambo!)
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