How many human languages do you know? (Conlang or natural, major dialects included; well enough to converse on most basic topics.)
How well do you think you know basic linguistics theory? (Phonetics through syntax.)
... formal syntax for witing phonetics, derivational structures, etc.? (IPA, CXS, tree structure, S := NP VP, etc)
... conlanging in general? (History, culture, types, motivations)
... specific conlangs? (I.e., fluency in any conlang(s) of your choice)
... theoretical issues of conlang design?
Elaborate / anything else?
Will you want a printed copy of the class reader? (Assume that you will get a .doc copy of it which you could print yourself if you wanted, and that the price of a printed reader will be in the normal range for something that's 326 pages, i.e. ~$15-25.)