20120607_me_15.mp3?orgId=471&topicId=1013&d=240&p=3&story=154452475&t=progseg&e=154148957&seg=15&ft=nprml&f=154452475 Listen • 4:01 20120607_me_15.mp3?orgId=471 ...
Imagine a school where every child gets instant, personalized writing help for a fraction of the cost of hiring a human teacher — and where a computer, not a person, grades a student's essays. It's ...
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