In this video I show you how to simplify trigonometric identities by adding fractions. I begin this lesson by reminding you ...

In this video I show you how to add, subtract, multiply and divide fractions by working through 52 different examples. I make short, to-the-point online math tutorials. I struggled with math growing ...

The ratio of doughnuts to students was deliciously disproportionate Monday afternoon as Abby Fremouw's third graders applied ...