Some Dos and Don'ts
Never give verbal or physical threats to the students. More importantly, never get involved into a confrontation in front of the class.
Avoid using negative symbols, such as 'X', to mark a wrong answer. You can use a '/' (slash) instead.
Avoid using red ink to give grades, red color represents negativity and hence is best avoided.
The students look at teacher as an inspiration, so you wouldn't want to fumble in front of them. Be well prepared with the lessons that you will take well in advance.
Be firm, yet friendly and supportive to the students. Any inclination on either side will send wrong signals to the student.
Act fairly with all the students irrespective of how they behave with you. A mistake from the best student of your class calls for the same punishment, which you would give to the most naughty student for the act.
You need to understand that classroom management is a skill which has to be practiced throughout your career. These strategies will also help you to cut down on problems such as indiscipline, and indirectly lessen the distractions in your classroom.