I'm taking over a Y3 class after Christmas that I've taught for a couple of weeks on supply already. About half the class (almost all the girls) are very well behaved. The other half (all the boys and a couple of girls) are not. While they will seem to follow my instructions, there is an unbelievable amount of fussing, squabbling, shouting out, tale-telling and lack of listening that leads to a lot of learning time being wasted because they are queuing up to tell tales or haven't listened to the input or haven't started because they've been busy chatting or arguing. There's also a lot of arguing and fighting between them in the playground. A lot of it is quite hard to spot - a few children are quite sly about it and will seem to be getting on with their work while they are actually winding each other up! To the extent that in my interview lesson a fight went on behind my back which I didn't notice because I was working with a group. (Still got the job but was very annoyed with myself when I heard the feedback!) I stick to the school behaviour policy and am consistent about giving out rewards and sanctions - I have also spoken to a couple of parents about children's behaviour. If I can tell children haven't done enough work because they were chatting then I have made them finish it at break/lunch. It's more of a maturity issue I think with many children, but whatever it is, I really need to stamp it out as it is a problem! I have a few ideas for how I will begin to handle it (creating golden rules and consistently reminding them of them) and will have more of a think over Christmas but I'd really like some ideas for how to deal briskly and efficiently with children who are constantly fussing and squabbling and telling tales on each other and not listening well and half of them shout out at me when I ask one of them a question. I want to nip it in the bud before it gets any worse so I really want to go back with a firm approach and consistent strategy for shutting it down - this was the main point of feedback from my interview so it's something I really need to make progress on right away. Thanks for any suggestions - their behaviour definitely isn't as anywhere near as bad as most of the posts I've seen on here and they are nice children on the whole but it's something I would really appreciate help with!