So, I joined the faculty in 1978, 091 and my first teaching assignment was 3.091 recitation. I had two sections.

我在1978年的时候加入了教职的一员，我第一个教授的课程就是3。,当时我的课程分为2个部分。

麻省理工公开课 - 固态化学导论课程节选

When I first taught this class that was back in 2002, I taught it at a seminar and had eight students.

我第一次开设这门课程，是在2002年，是以讨论会的形式，只有8名学生。

哈佛公开课 - 幸福课课程节选

We have 90 extension school students who are taking the course via distance education, so we have a huge group that will be joining us at the 2010 CS50 fair and the those photos you saw a moment ago depicted 2009's.

这里有90个来自哈佛开放学院的学生,他们正在通过远程教育来学习这门课程，所以参加2010年CS50课程的团体是很庞大的,刚才你们看到的图片显示的是,2009年的数据。

哈佛公开课 - 计算机科学课程节选