6th Grade: Latitude and Longitude Games!
I have compiled a small list of Latitude and Longitude games I found on the Internet here, so you can spend some time playing/reviewing.
Here are the links:
http://www.abcya.com/latitude_and_longitude_practice.htm (it starts out easy but gets harder as you go along!)
http://www.kidsgeo.com/geography-games/latitude-longitude-map-game.php (help Hannah find herself!)
http://www.purposegames.com/game/longitude-and-latitude-quiz (this is good because you have to identify continents and oceans too)
http://www.infoplease.com/p/brainpop/latitudeandlongitude.html (it's a little quiz going over concepts)