Dragonbox is impressive because, without relying on text, it teaches the rules of algebra step-by-step as if the player is really only learning the laws of the universe particular to the game.

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Rather than just learning a particular set of rules or a formula in a lecture, simulations let managers try things out.

ECONOMIST: Serious games

That is, players think they are only learning the rules, or mechanics, of a video game.

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