Keeping your students in line in the classroom

As a teacher it is imperative to be able to control your students within the classroom...as a teacher you must have control of your students. I recently talked to my boyfriend's sister, who is a teacher, and we discussed having a disciplinary action plan set from the beginning of the year. This enables you as a teacher to have grounds to stand on when you may come down and have to discipline a student. Afterall I did have to teach a lesson in my classroom in one of my spring classes and realized that once you say something will be done you need to stay firm and students will have to answer to the consquences. This was one of the main things that I learned after being up there and discussing what had happened with my teacher and my boyfriend's sister, who has been in the teaching world within the past ten years. The one thing that I def. received as adviced was to set forth a disciplinary plan for the students so that strike one will have a certain consequence and follow to the last strike that would result in the most severe consquence.