<p>I am in one and it is basically a little longer and very dependent on the TA that teaches it and the type of class you want to do. I don't recommend the math b/c calc 230 is based all on the teacher b/c it is a lect/disc. Calc 220 is way too many hours. Chem is a good one I think (I was in the chem one but for 202/204). Bio I'm not sure I'd have to ask. What class(es) are you thinking about taking with the Merit program.</p>