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America's most popular teacher

Salman Khan, a former hedge fund manager, is the founder of Khan Academy, a free online learning platform with a library of more than 2,300 videos covering everything from basic algebra and differential equations to the Vietnam War.

Salman Khan, a former hedge fund manager, is the founder of Khan Academy, a free online learning platform with a library of more than 2,300 videos covering everything from basic algebra and differential equations to the Vietnam War.


阅读难度:

America's most popular teacher doesn't work at Harvard University or a fancy prep school. In fact, he doesn't work in a school at all, but his lessons have been viewed more than 56 million times, US News and World Report reports.

Salman Khan, a former hedge fund manager, is the founder of Khan Academy, a free online learning platform with a library of more than 2,300 videos covering everything from basic algebra and differential equations to the Vietnam War.

Most videos are brief – anywhere from a couple of minutes to a half hour, depending on the subject.

Khan scrawls equations and writes down key terms on a computer program that simulates a chalk board as he explains them with a voiceover track.

(点击《美国新闻与世界报道》网站查看原文)

美国数学的救世主

       《美国新闻与世界报道》消息,美国现在最受欢迎的老师已经吸引了56万人次观看他的课程——他不是哈佛大学的老师,也并非来自知名补习学校,事实上,他根本就没有在学校工作过。

       萨尔曼•汗曾经是一名对冲基金经理,他创办了免费教育网站“汗学院”。迄今为止,汗学院网络平台上的视频数量超过2300段,从小学的简单加法、大学微积分到讲解越南战争,内容非常广泛。

       大部分视频都简单易懂,因为科目的不同,视频长度从几分钟到半小时不等。

       汗在计算机上模拟建一个黑板,在上面写方程式和画草图,另外还配有画外音,对一些概念进行讲解。

(China.org.cn June 15, 2011)

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