Welcome to the Learning Arcade!
http://www.thekidzpage.com/learninggames/index.htm
http://www.prongo.com/games/ages6-9.html
http://www.knowledgeadventure.com/
http://www.funbrain.com/kidscenter.html
http://www.kidsknowit.com/
http://www.gamequarium.com/
http://www.theproblemsite.com/games.asp
http://www.learningplanet.com/stu/index.asp
http://starfall.com/