I just received an Enhanced Chancellor's Fellowship from CUNY Grad Center for my PhD in English. I'm ecstatic but very concerned about the required teaching for years 2 through 4. The offer letter states that I will be teaching two 3 credit courses every semester during those years for a total of 5 hours each week, and this sounds really daunting. At present, I am a TA at my university for just one class each semester, and that in itself is demanding. However, it is possible that the kind of course I currently TA for (literature and not composition) is different from what CUNY expects. I'm also concerned about the time I will lose in traveling to different boroughs to teach these classes. I wonder how large these classes are, how demanding of the teacher, and also if there is a graduate teachers' union. Any information you can provide me with, whether from first-hand experience or something you have heard, is welcome. Thanks very much!