Overview: It's back to school for Trading Spaces as our design team hooks up with four sorority sisters to redo their college homes. Frank teaches a class in wall painting and crafts for the sorority TV room, while Laurie gives a lesson in improving the flow and dressing up the sorority's chapter room. Meanwhile, carpenter Ty gets high marks for his window seat bench and ship's wheel candelabra. Can we finish before the bell rings? You'll find out.