Combien?!

Well, so far today I have been looking at sorting out which lessons and the like I am thinking of taking. I was gonna go on a tour of the town, but I couldn't be bothered getting up in time. I can hear alot of bonne journée coming from the corridor, and it always seems to be the same person, which concerns me that we may have adopted a concierge. Anyway, anyway, anyway, I was noseying through the 200+ page booklet we all get (think of the wasted paper!) with the modules and courses we can take, and finally thought that I'd look up what the hell CM and TD/TP means. CM are 'cours magistrals', i.e. lectures, and TD/TP are 'travaux dirigés/pratiques' and I assumed them to be seminars. Until I saw that it said they are taught in smaller groups, of around 45. This now concerns me as to how many people are going to be in lectures! And how many people there are going to be in seminars! Eep!