Check out these ideas - I hope they are of some help. Certainly if the other teachers do not maintain discipline it makes it harder for you, but it can be done. I KNOW it can be done because when I was in school I was so naughty, (what a nightmare for the teachers) but there was ONE teacher with a reputation and I behaved with her! Now please don't think pupils should be afraid of you, of course not, but if there is no discipline in class then there is hardly any learning.
It is up to you to be firm so check out what options you have with the school regarding giving black marks or extra homework or staying late, after all the good old reward and punishment system goes a long way, it's just human nature.
Don't break your own rules by raising your voice to be heard. Instead talk quietly or stop and wait. Your class should know that for every minute you are kept waiting they will receive extra English homework, or whatever consequence you have designated.
Children love the sound of their own name more than anything else. So use an individual's name for praise and avoid using it when telling someone off.
Create teams and deduct or reward behavior points to a team's score during a game. Your class will respond naturally by using peer pressure to keep the naughty children from misbehaving.
Empower your children with choices. For example, ask a naughty child, "Do you want me to speak to your Dad?" By asking a question you give the child the power to choose, whereas if you use a threat such as, "I'll call your Dad if you don't behave", you take the initiative away and seem tyrannical.
You can also say things like, "you can either play the game properly or you can sit in the corner". The child will probably choose to play the game properly, and you make them responsible for their behaviour.
Prevention is better than cure, so try giving boisterous children an important task BEFORE they start to play up. They may respond well to the responsibility.
It is important, especially with a large class, to hand things out quickly or use a system to have this done, such as giving the well-behaved children the task as a reward. Sing a song together or do some counting or a quick game to occupy the class while materials are handed out.
Play a mystery game and, before you start your fun game say that during the activity you will be watching the whole class for 3 well-behaved children who will be rewarded.
Only play games where you know you can keep a handle on the situation. For example there is no point playing a boisterous game with a lot of movement if you have more than around 20 children. With large classes, including classes of up to 60 children, you need special games where the children have limited movement - such as standing up or making gestures but while remaining in their seats. You can sign up to receive free games in the resource box below, and some of the free games given out are suitable for very large classes.
for free classroom games for 6 to 12 year olds
for a free mini-series of games and an illustrated story for preschool children learning English