It is also free to have your students play every week in a national contest to win technology prizes for your school. We started off the week in 316th place, then 253rd, and now 213th. Pretty far from winning, but the kids love the competition. They can also compete with others in their class which makes it more exciting and fun to play.
Click on the picture above to head on over to their site and check it out. I'm sure your students will love it as much as mine do!
Do you have any math sites that you use regularly in your classroom? I would love to hear about them, as I am always on the look out for fun, educational, computer games to use in the classroom and our computer lab.