Education in the largest sense is any act or experience that has a formative effect on the mind, character or physical ability of an individual.
http://en.wikipedia.org/wiki/Education

FunBrain is the #1 site for online educational games for kids of all ages. (math, grammar, science, spelling, history)
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Educational games are games that have been specifically designed to teach people about a certain subject, expand concepts, reinforce development, understand an historical event ...
http://en.wikipedia.org/wiki/Educational_game

... com provides expert advice, features, columns, thousands of reference articles, and a community for parents of pre-school to high school students. Find parenting and educational ...
http://www.education.com/

ed·u·ca·tion·al (j-k sh-n l) adj. 1. Of or relating to education. 2. Serving to educate; instructive: an educational film. ed u·ca tion·al·ly adv.
http://www.thefreedictionary.com/educational