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| Salman Khan and his free Math lesso |
| Salman Khan and his free Math lessons on YouTube
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| UNITED STATES OF AMERICA
, 5-December-2011
7:49:10 AM |
| Jesse Roe, a ninth-grade math teacher at a charter school here called Summit, has a peephole into the brains of each of his 38 students.
He can see that a girl sitting against the wall is zipping through geometry exercises; that a boy with long curls over his eyes is stuck on a lesson on long equations; and that another boy in the front row is getting a handle on probability.
Each student's math journey shows up instantly on the laptop Mr. Roe carries as he wanders the room. He stops at each desk, cajoles, offers tips, reassures. For an hour, this crowded, dimly lighted classroom in the hardscrabble shadow of Silicon Valley hums with the sound of fingers clicking on keyboards, pencils scratching on paper and an occasional whoop when a student scores a streak of right answers.
The software program unleashed in this classroom is the brainchild of Salman Khan, an Ivy League-trained math whiz and the son of an immigrant single mother. Mr. Khan, 35, has become something of an online sensation with his Khan Academy math and science lessons on YouTube, which has attracted up to 3.5 million viewers a month.
Now he wants to weave those digital lessons into the fabric of the school curriculum - a more ambitious and as yet untested proposition.
This semester, at least 36 schools nationwide are trying out Mr. Khan's experiment: splitting up the work of teaching between man and machine, and combining teacher-led lessons with computer-based lectures and exercises.
As schools try to sort out confusing claims about the benefits of using technology in the classroom, and companies ponder the profits from big education contracts, Khan Academy may seem like just another product vying for attention.
But what makes Mr. Khan's venture stand out is that the lessons and software tools are entirely free - available to anyone with access to a reasonably fast Internet connection.
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