I also took a class and the instructor said to do one row at a time or we would get very mixed up. I guess she was right. The one problem I had was the very first cut I had the template up side down, and rather than stopping right then I continued and tried to sew that one last. I had a terrible time and of course there was no more fabric to cut a new piece. It too me days, but I finally got it done. I'll never do that again!!!
Sue