"To tell you the truth, I was rather disappointed in this aspect when I got to Harvard. I found that classes were much larger than where I came from (which was a major univ. not a liberal arts college), and that grad students were more prevalent. And I will also say that being taught by grad students or in large groups isn't nearly as enjoyable as having real faculty in small classes"
2. 给你一个大猫的林克:
http://www.math.dartmouth.edu/~m22s11/
点击第一个instructor,再点击他的CV