Learn how to solve a system of equations by using any method such as graphing, elimination, and substitution. 4x-3y=8, ...

In this video I work through three examples to show students the power and meaning of parenthesis. If we don't understand how ...

Grade school math students are likely familiar with teachers admonishing them not to just guess the answer to a problem. But a new proof establishes that, in fact, the right kind of guessing is ...