Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. There’s a lot we learn that we instantly forget. In fact ...

In this video I work through 68 examples of factoring quadratic expressions when a is not equal to one. The first couple of ...

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

Even the best math teachers have had students who ace the chapter tests just to go on and struggle with that same content on the final exam—or students who have a hard time grasping more advanced ...

Practice multiplying by 9 using your fingers and several math games. Explore the Multiply by 9 facts by recognizing there is only one new fact: 9 x 9. Compete against characters to see who finds the ...

If a college baseball coach wants to improve the hitting average of his team, what should he do in batting practice? Is it more effective to have the players hit 15 fastballs, then 15 curve balls, ...