Print out the online notes on repeated play (Sept 30 notes). Annotate
the proofs for Theorems 2-5 before class by writing questions, writing
your notes, and making clarifications. Bring this annotated proof to class
and turn it in at the start of the class. Most students like to have their
annotated proof in front of them for the lecture, so it is probably best
to photocopy your annotated proof and turn in the photocopy.