The thing that struck me about "stupid" questions was that my high school chemistry class had a student who kept asking questions that I didn't quite have the nerve to raise. The teacher was also very solid (he didn't ask us to memorize atomic weights because he thought it was a waste of time, and, while he wasn't flashy, he went through the material very efficiently), but I think it was the student who asked the questions contributed to extraordinary scores for the class on the subject-based SAT.

The highest possible score was 800. The class had about 28 students. 6 of them got 800s. I was one of the 2 who got 795.