<p>What top twenty school is there here besides Columbia? Do you mean you’re a freshman in another school, or at high school? Summer classes don’t have requirements for registration (apart from sequential prereqs, i.e. Calc I or equivalent before Calc II). When they list “fee,” they essentially mean “surcharge.” Tisch classes normally run about $1,200 per credit for the summer, if I recall correctly. When they list a fee, that’s a lab/studio fee that’s additional to the cost of the class.</p>