On the Web, College Classes With No Charge (or Credit) (1/2)

Knowledge is free on the Internet at a small but growing number of colleges and universities.
About one hundred sixty schools around the world now offer course materials free online to the public. Recent additions in the United States include projects at Yale, Johns Hopkins and the University of California, Berkeley.

Berkeley said it will offer videos of lectures on YouTube. Free videos from other schools are available at the Apple iTunes store.

The Massachusetts Institute of Technology became an early leader with its OpenCourseWare project, first announced in two thousand one. Free lecture notes, exams and other resources are published at ocw.mit.edu. Many exams and homework assignments even include the answers. The Web site also has videos of lectures and demonstrations.

Today, OpenCourseWare offers materials from one thousand eight hundred undergraduate and graduate courses. These range from physics and linear algebra to anthropology, political science -- even scuba diving.

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在一些高校的网站上，有免费的知识，这些高校为数不多，数量却一直在增加。

现在，全世界大概有160所学校向公众提供免费的在线课程材料。在美国，最近增加了耶鲁大学、约翰霍普金斯大学和加州大学柏克莱分校的项目。

柏克莱分校称，它将在YouTube网上提供讲课的视频。在苹果iTunes商店中有其他学校的免费视频。

麻省理工学院是其开放式课程项目的早期领导者，它于2001年首次宣布此项目。ocw.mit.edu网上刊载有免费的讲义、试卷以及其他资源。很多试卷和家庭作业甚至有答案。网站上还有讲课和演示的视频。

今天，开放式课程提供了1800个本科生和研究生的课程资料。这些课程从物理和线性代数，到人类学、政治学，甚至水肺潜水，都有涉及。

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