In this video I show you how to evaluate the six trigonometric functions given a point. We will evaluate, sine, cosine, tangent, cosecant, secant, and cotangent. Yes, I am wearing a shirt with my face ...

In this video I will show you how to evaluate the tangent of -75 degrees. We will do this by breaking up negative 75 degrees to 45 -120. We will then apply the difference formula for tangent and ...

A new Vanderbilt University study, funded by the U.S. Department of Education, finds that students learn best when taught the concepts behind math problems rather than specific procedures on how to ...

It is deceptively simple to imagine that a curriculum’s effectiveness could be easily determined by a single well-designed study. Such a study would randomly assign students to two treatment groups, ...

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...