So I rearranged a lot of the twins' chapters, and made some things happen earlier. For example, I thought the third section was too late in the book for the first rehearsal, so I moved the buddy thing and the improv group stuff up. The plotline pretty much remains the same. Additions include more detail on this drama class that the seventh graders put together and how they got to be in Up The Down Staircase in the first place.