Wow!
Age, class size and behaviour might help!!
Please note: Any behaviour is a result of its consequences.
(this should be your guide to solving any and all behaviour problems.)
Disruptive behaviour usually stems from attention seeking. In which case you need to ignore the student seeking attention and focus on the other children doing the right thing. Remember ... being angry and punishing the disruptive student is rewarding with attention! So you need to be very careful that you don �t give the disruptive student what they want. To put it another way, if the student is disruptive because of seeking attention and you give them attention they will continue that behaviour and even encourage the other children to do so.
Disruptive behaviour may also stem from a genuine need to stop the lesson because the student does not understand and feels frustrated. If this is the case you need to assess that students needs and alter your teaching style. It �s like a cry for help from the student and you need to listen to that and adjust. This is rarer than the earlier form.
So basically, do not give the attention seeker attention and focus on the good points of the other students.
I use a poster I have on the wall of a student quietly raising their hand in a chair from microsoft clip art. When I get a student out of their seat or shouting me me me! I simply pause quietly, put my finger to my lips, point to the poster and when the class is settled I ask one of the better students how we should behave etc... this is a quick fix because I usually don �t have time to deal with behaviour with game based systems.
Reward systems are good like stickers etc but do not solve the problem in the long term. You do not want students behaving well, just to get stickers. You want them behaving well because they want to, and because it contributes to learning and social harmony.