I am working on an activity to develop fluency with the unit circle-- aiming to get them to think about arc length.

I want to set the information for the problem in a table on the slide that will be hidden. I am struggling with figuring out how to initialize the moveable point. Any help would be great. @Daniel_Wekselgreene @Daniel_Grubbs

It appears that any extra calculation within your trig function nixes draggability, but if you use a single variable it will work, so just remove the 2pi in favor of specifying a in radians…

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