In this video I work through 68 examples of factoring quadratic expressions when a is not equal to one. The first couple of examples I explain the process of factoring by using the ac method and box ...

In this video I work through 129 examples of evaluating trigonometric expressions. We will evaluate the sine, cosine, and tangent using angles from the unit circle. To do this I will sketch each angle ...

When I was a new teacher, I wanted my students to see math not just as numbers and equations but as a tool to understand the world around them. My goal wasn’t for them to simply memorize formulas to ...