<p>My LAC has around 2500 students and there weren’t many classes larger than 50 students. 1% of our classes were larger than 100 students (and when they say larger than, they probably mean like 105) and those were freshman biology and general chemistry - my alma mater had a very strong pre-med program and a lot of students started off pre-med. After freshman and sophomore year many pre-med students dropped it and the pre-med classes got much smaller. I only had one class (biology) that was 50 students; however, there were two lab sections, so our labs were only about 25 students. The rest of my classes were all less than 30 students, and I had two that were only 4-5 students and several that were about 10-15 students. The largest proportion were around 20 students.</p>
<p>I also want to point out that a 100-person lecture class isn’t actually that large, especially if there are smaller lab sections. At very large universities, lecture classes can easily have 200-300+ people. One of my close friends was premed at UCLA and her freshman bio classes had 500+ students, with some of them having to sit in overflow rooms and watch the lecture over telecasts. If you have to take one or two lectures that have around 100 students but have smaller lab or recitation sections, you should be fine.</p>
<p>If I become a professor after I finish this PhD, I’d teach at an LAC.</p>