[scarletred]

I'm teaching teenagers of 10-16 and I've just tried a game which they really liked and above all it can be adopted to different topics. once you're teaching occupations write a list of different words on the board then ask them to choose a job but keep it secret others should guess what the job is. you can write the phrase you want them to use on the board for example I wrote "Are you a/an ...?" they'll have to use this question several times until they come up with the right answer. I taught yes/no questions through this game instead of explaining boring rule.
I wish it will help you, though it's so late!