What2Learn is a website offering more than one thousand educational games for middle school and high school age students. What2Learn is a European based website so some of the games, particularly the math games where money is expressed as Euros and Pounds, may not be appropriate for US students. Aside from that most game are appropriate for use with US students.
Applications for Educators
Teachers and students can create accounts on What2Learn to track their progress as they go. The teacher account is good way to see how your students are doing. Teachers can create their own games or modify games to fit the needs of their curriculum.