37-68, on reserve. The 1960's Frank The Conquest of Cool, pp. 52-196, skimming chapters 4,5, and 6. 37-68, on reserve. I value what students have to say, sometimes to the extent of letting people go off on tangents.
Students usually assume that they are being judged on the content of their comments.
I judge students merely on whether they say something. In my experience, the only mistake a student makes in class is imagining her or his comments are worth airing on every topic. If you are a verbal person, let other people have a chance at it. If you are not verbal, recognize that your ideas are often more incisive than those of people who talk regularly. Make an effort to make your ideas known, whether it is the first day of class or late March.