Whatever you do, "As you enter a classroom ask yourself this question: 'If there were no students in the room, could I do what I am planning to do?' If your answer to this question is yes, don't do it." - Gen. Cubero, USAFA.
Good behavior is the result of good lesson planning. However, as a teacher, I will have to deal with a range of unexpected problems; namely with implementation, enforcement, and discipline of an in institution's policies. I will give you my previous experiences and ideas how I would deal with the problems; "English only" policies, tardiness policies, helping students preparing for their lesson presentations, etc.".
The English only rule will only work if the students are rewarded for their good behavior and 'punished' for their bad behavior. One of my teacher, Emma who I met in CIA academe which is in Baguio in the Philippines to study English for 3months, always started off each class with everyone's name on the board and a smile next to their name. Finished the class with a smile; students get a stamp, sticker, a pencil, etc Break the English only rule and she erased student's smile and no reward is doled out. This is enough for 90% of students. The most students followed all the steps but there's still that one class or student that is not responding to the rules. Why few of students are not responded to the rules? I think we must ask ourselves why is this student rebelling? More often than not, they are in a class that is too difficult for them and have become frustrated to the point of giving up. Seek to move the student to a more appropriate level or spend more time with the student before, after or in class.
The next classroom management assignment which teachers face is attendance and how to deal with tardiness. While many students will be tardy at some point during the year, tardiness can quickly become a real problem if an effective tardy policy is not in place.