I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

Evaluate the composition of trigonometric functions by creating a right triangle. In this video we will evaluate the tangent by given the ratio for cosine. To do this we will use right triangle and ...

The Standard Deviants serve-up all sorts of useful trig vocabulary. Get your fill of degree and radian measurements, and a sampler platter of right triangle trigonometry.