When I went to Iowa, I had a habit in my classes that I would usually blow off one paper in each class, each semester. I still skated by with a B average.
Iowa gives you access to amazing resources and the faculty is at the top of their fields...however, you can get by with little effort because no one cares whether or not you learn anything. All Professor Elbowpatch cares about is getting his research published, and your T.A. Simrahn only cares about his work Visa, and your other T.A. Persephone is distracted by planning her candlelight vigil to the victims of men's penises. Your final exam is just the headings in the text book in a 75 question, multiple choice format you can finish in 20 minutes.
Very funny 2nd paragraph.
But a teacher/instructor can write very good and complicated multiple choice questions with 5 distractors.
I thought most all science and math professors and instructors I had at Iowa were very good.