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Whether you're currently in school or just seeking a little self-improvement, a plethora of Android apps are just waiting to enhance your knowledge base, expand your skill sets, improve your memory and more.
We've picked a few of the top applications in a number of categories, including math, music, geography, astronomy. Take a look at these apps, and in the comments, let us know which ones you already use to keep your most powerful organ in top shape.
(And to all you teens trying to convince your parents that buying you an Android smartphone is a good idea, you're welcome.)
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