Preview it beforehand. Make them reading questions that clarify or predict possibilities in the text, the more open-ended the better. Have them write the answers as completely as possible. Take a few answers from the group. Give them a few minutes to re-write their best answer and turn it in for a grade.
Organization is vital, but so are names and a strong teacher-delivered curriculum.
Warn them ahead of time that disruptions won't be tolerated. Two means out to dean's office. I went to Catholic schools, but teach at public ones. Probably I'm more nun-like than kids would like some days, but they work hard and seem to feel it is valuable.