If you don't have Google Earth, it is a great learning tool and free to install.

http://earth.google.com/

This tutorial on youtube can help with the project we're doing right now.

http://www.youtube.com/watch?v=AgW3GbSxsRs&feature=PlayList&p=37C07499041C4517&index=5

Basic facts, review fractions. Mathletics.