This book was very good.
It reminds me a lot of The Breakfast Club. In this book they are in a class with a teacher because it was either the class or getting kicked out of school.
You get a lot of what The Breakfast Club does, students that would never talk in school get together and the teacher is there but for the most part he is there to keep things civil.
The class only goes for so long but they get to know each other and at the end it was learning how the other students lived that helped to change each of them.
I highly recommend it and it is a short read that I found I couldn't put down.