Hello teachers! You an use this idea if you have an only student class and one computer (my case) or a computer lab with internet acess.
I found a realy nice site for games on line a few years ago( english-online.org.uk ) and yesterday I decided to work with it. There are many games about grammar, vocab and also downloadable games. I selected some on line games related to the topic I wanted. You can let your student play while you make coments about vocab and gramar rules, furthermore you have fun all the time. If you check the homepage of the same site, there are on ine tests for proeficiency test and more. Take a look!