Some games are better for younger learners.
PreReaders
Coloring books and cute dogs are just the thing for almost everyone.
Games for Beginners
Some games are better for younger learners.
Intermediate Difficulty
These games and quizzes are a little more difficult.
Advanced
As the problems get harder, so does the level of knowledge.
Hands-on Interactive Games – Advanced Students Advisory
Strike off into a new adventure, but do it quickly because the fate of the universe depends on your success.