I have been using "change your color" for the student's behavior that is unacceptable. (For example I say rule #1 follow directions quickly. If students are still not following directions quickly and are talking etc. I repeat Rule #1 and all the students will yell "follow directions quickly". If a student is not following directions quickly I say it again. If the student still persists I tell him/her to change their color (They all start on green. If they change it is to yellow,orange (note goes home) and red (referral to office)). I have not gotten a red yet.
The scoreboard I use for participation and attention during whole group. If most of the group is paying attention I give a smiley. If most are not I give a frowny. I use this for a week and the students are paying attention more. Each week is something different: Treasure Box for all, lunch with teacher, 3 minutes to draw after writing. Etc...
I know it is a whirlwind during the day and I am feeling like I am always running behind, but I was told it should calm down after January!!! (I have something to look forward to)