It has become adopted particularly by students and teachers for things like lecture notes.

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Like chewing gum and walking, I could type lecture notes in my sleep.

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Through the OpenCourseware Web site, lecture notes, exams and other resources for more than 1, 800 MIT classes are available online for free.

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The tool also makes it easy to insert graphs or charts, thanks to an "Add Annotation" option that integrates diagrams directly into your lecture notes.

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In nearby classrooms, most students are furiously typing lecture notes.

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During his lecture, he notes that the U.S. tried to spend and tax itself out of the Great Recession and amassed a great debt.

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Tao responded by posting class notes, lecture slides, open questions and comments.

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That is listen to a teacher lecture, write a few notes and take a test every week at the end of the week.

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Since the audio is recorded at the same time as the notes are written, students can get a full playback of a lecture.

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