The Tangent is a Tangent!

posted in: GeoGebra, Trigonometry 13

In my post Trigonometry Yoga, I discussed how defining sine and cosine as lengths of segments in a unit circle helps develop intuition for these functions. I learned the circle definitions of sine and cosine in my junior year of … Read More

Trigonometry Yoga

posted in: Trigonometry 6

Which is bigger, the sine of 40\(^{\circ}\) or the sine of 50\(^{\circ}\)? This is a great trigonometry assessment question.   Unfortunately, virtually none of my college students who haven’t used trig for a while can answer it (without a calculator).   For … Read More