Here is a great link to ideas on managing the classroom.
Great classroom management ideas from Scholastic
No. 1 - Hand up - is like parking lot. Students put up their names if they need help on the hand. Such a cute idea. I love the Bingo for good classroom behaviour. Good behaviour gets a reward of a number, and the first to fill up a line gets another prize.
No.2 looks like another version of the traffic lights that we are using. No.4 helps us to keep track of students' whereabouts. Some students like to ask for toilet breaks but never come back. A look at the Cheat Sheet will tell you whether they are back. Which is your favourite?