Find a copy of Oregon Trail somewhere. Overall in the end, if "played" seriously it teaches kids a little about money management, a bit of history, and makes them read (which is always a good thing these days, considering how few kids these days know what a book is). Well they know what a book is, but they'd rather not read them.
And what's better, it is entertaining enough to keep kids so occupied with trying to "win" they end up forgetting that they're learning...but that's in my opinion is the point of a "educational" game.
Got what I'm looking for on download.com, it's some flash games, thanks GamingX.
Oregon Trail looks too heavy for kids under 10 years old, but I never really try it to kids so this is going to be the first time, thanks again