I am a huge fan of Class Dojo.
I first heard about it in September last year when Alex Bellars talked about it at the MFL Show and Tell at Cramlington Learning Village. I've since heard other teachers praising the virtues of Class Dojo, so I thought I'd give it a go.
Class Dojo is a web-based application which allows teachers to give points to students for positive behaviour and take points away for negative behaviour.
One of my colleagues, who is a self-confessed technophobe, has started to use it recently on my recommendation (and tuition) and has found that it has had a great effect on some of her most difficult students.
I don't pretend that it is a surefire way to improve the behaviour of unruly pupils but it certainly has helped with my classroom management.
I recommend that you give it a go.
If you do and like it, tell your friends and colleagues. It could make a huge difference to the way they teach and the way their classes respond.