I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

In this video I will show you how to simplify trigonometric expressions by multiplying by the reciprocal, lcd and ...

Many children never master fractions. When asked whether 12/13 + 7/8 was closest to 1, 2, 19, or 21, only 24% of a nationally representative sample of more than 20,000 US 8th graders answered ...