Comment This was also my experience at Georgia Tech. (Score 1) 391
At Georgia Tech, the core classes of Calculus, Physics, Chemistry, and some others were taught in auditoriums with over 200 people in them. There was no opportunity to ask questions during lecture - it just would not be practical or fair. Consequently lectures were about as useful as watching the MIT free course ware you can now watch online for free. You went to lecture 3 days a week, and then went to a session 2 days a week with a teacher assistant, who was a graduate student doing this as a requirement for their own course work. They might be interested in doing it, or they might not. They might speak English well, or they might not. This is where the bulk of actual teaching went on though.
After about 2 years as a traditional student at GT, I failed out, and spent the rest of my time as a non-traditional student at 6 other colleges and universities while working and completing my degree.