Provides a wealth of free games, puzzles, quizzes, and more. An impressive, rich resource of fun educational games and activities. No registration required and very user friendly. There are quizzes and games for all ages and grade levels. I have to say that I personally enjoy this site quite a bit, partaking in quizzes, completing puzzles, and checking out the many resources offered.
Can your students identify the seven continents of the world? What about the four oceans? Equator? Prime Meridian? Give this assessment frequently so students are able to identify the parts of the world correctly. I give this assessment to my students quarterly and it is amazing to see how the improvement (or lack there of) after knowing they will have a pop geography test at any time! :) Enjoy!