Hi! How do you organized the class? Can you make a horseshoe?
I teach for for teens too, there are 30 in my class, so a make a horseshoe, so they can't talk a lot and loudly.
Do you know the tic tac toe activity? You can use it with all kinds of vocabulary. If you have a little time outside the class, make the grid with cardboard,so you can use the same for all classes, and you don't lose time in the class, when the ss are really agitated.
There is a site ,wich thise game is. You have to subscrib but it is free. site:
http://www.longman.com/ae/members/fu...dfs/chap02.pdf
Good luck
hugs