Add Yahoo as a preferred source to see more of our stories on Google. We like to think that we're pretty good at math, especially after years of schooling. But every once in a while, a simple ...

For 23 years, I’ve taught high school math. And for 23 years, I’ve been told by people that they either are a “math person” or they are not. I get it: Math isn’t easy. Movies and TV shows make it look ...