Give Calculation Nation a Try This Summer

I've found a great site for math games, Calculation Nation. I like it for a few reasons:

1. It was created by the National Council for Teachers of Mathematics, so it's based on important math standards.
2. The games are really fun.
3. Students can play the games "against" each other.

The only catch is that you have to sign up for an account. So if you want your son/daughter to use Calculation Nation this summer, go to their site and register today!