Here's a great and practical forum posting from a veteran of classroom management tactics.
"Teaching is a great job if you can do two things: 1) Teach the students to be kind and polite. 2) Manage the paperwork.
CANI: Constant And Never-ending Improvement
If you improve by 10% per year, in a very short period of time you will be one of the best teachers in the school.
Take responsibility for your students. How do you explain why some classes are orderly and others are chaotic? If Patton walked into the class, do you think for one second anyone would be disrespectful? Norman Schwarzkopf, or Jaime Escalante?
Let’s take our lessons from: Blaming the students, their parents, their neighborhood or your principal for rude and disrespectful behavior only eliminates your chance to effect change. Many teachers like to play the blame game. They do not take responsibility for their students’ behavior, but are quick to place blame on someone else. If you acknowledge your own responsibility as a teacher and a mentor to your students, you have the opportunity to change in your classroom.
All is fair when controlling 30 or 40 recalcitrant teenagers.
A) Lessons from military history.
B) Lessons from evolutionary psychology.
C) Lessons from interpersonal relations.
D) Lessons from experience."
Check it out the rest of this detailed advice at: A TO Z Teacher Stuff: Classroom Management!