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 go through my notes to explain how to determine the inverse of a function. We will mainly focus on ...

For novices, functions are one of the most intimidating features of OpenOffice.org's Calc. Newcomers quickly learn that functions are a main feature of spreadsheets, but there are almost four hundred, ...

We hear all the time about project-based learning. But how does it really work? Of all the tools humans have ever created to help describe and understand our world, few are more useful than ...