Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of ...

Sometimes you just need some helping solving a system of equations when you get stuck. I created this video to help you overcome your struggles when you just don't know why you struggle when solving a ...

If North Carolina high school junior Katie Denton struggles with her Algebra 2 homework, she knows she’s not on her own. Denton can use her school-issued smartphone to send instant messages to her ...

Jesse Schell is, perhaps, the top educational game designer in the business right now. A few months ago I asked him what his favorite educational game was. After a brief pause, he replied, “DragonBox ...