May I suggest, graph it! I went to a workshop this summer that was all about graphing results of quizzes, promoting constant review and preview (L to J). One of the suggestions was any time you have a behavior that you don't want, keep track of it and graph it. So I have an eighth grade class that talks, CONSTANTLY, no matter what I've tried. Yesterday, I kept track of all interruptions, to me or to other students, and during work time. The grand total for one fifty-two minute period... 141! I also did my seventh graders (22), and sixth (44-but they were so excited about what we were studying they wanted to tell story after story). So I made a graph and posted it. I also told the eighth graders that their hw would be due at the end of the class, and would all be graded, until they could keep unnecessary talking under 20 times (we'll get better, but that is progress). Todays total? 17. Graphing and showing kids what they are really doing really works!