Alert: Kids can't describe how 3π/4 relates to π.
News at 11: Radians? What new torture is THIS?!
I tried something new today in precalculus to help cement the "special angles" around the unit circle. Based on the spontaneous comment of one of my students ("this REALLY helped."), I am hoping for greater and sooner fraction success this year.
First I made templates and printed them on various colors of papers (one color for each special "radian"):
Each student trimmed the circles and pasted the yellow "unit circle" in their notebooks along with a blue slot to store wedges:
We then had a discussion about π/6 and I had them place various radians in standard position and we discussed reference triangles and values around the sides:
I made sure to do some negative angles:
Now I sit back and wait to see if THIS year they are fraction geniuses!