Students spend up to two hours a day in a computer learning lab mastering basic math and reading skills through exercises and puzzles, freeing up teachers to spend their time on advanced skills and concepts.

CNN: Computers can't replace real teachers

Mastering original jet fighter technology is a challenge and learning about one of the hottest battles of the Cold War makes it a simulation worth flying.

CNN: Fly back to the Cold War with MiG Alley

And, this year, instead of promising to transform yourself overnight into a better parent, how about committing to continually improve your parenting little by little, by learning, thinking deeply about, and mastering one skill at a time?

CNN: A different kind of parenting resolution

Lavender says he could become an options broker if he wanted to, but that would require learning a new set of skills and strategies akin to mastering electronic trades.

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