High school math, and algebra, in particular, is in crisis. Although some students thrive on the pathway to calculus, most do not. Algebra I is the single most failed course in American high schools.

In this video I will show you how to simplify trigonometric expressions by multiplying by the reciprocal, lcd and rationalizing the function. We will do this by first simplifying algebraic complex ...

California’s math wars are roiling the state’s educational system, with contentious debates over high school curricula. At issue is whether a “data science” course should be available as a substitute ...