Last year, Marcel Duvivier, Jeremiah Mubiru and Ana Perez Cespedes started developing a video game to help kindergarten through ninth grade students in the David’s Challenge program learn addition, ...

How many of us complained in high school algebra class, “I’m never going to use this stuff”? Well, whether you realize it or not, you’re using it on a regular basis. If you’ve ever calculated a tip, ...

Subscribe! Want more math video lessons? Visit my website to view all of my math videos organized by course, chapter and section. The purpose of posting my free video tutorials is to not only help ...

Subscribe! Want more math video lessons? Visit my website to view all of my math videos organized by course, chapter, and section. The purpose of posting my free video tutorials is to not only help ...