[alawton]

That is a hard situation when you are teaching kids after they have been in school all day. I would present the lesson for the day in about five minutes and then have the kids do activities based around the concept. If you are teaching something like the present progressive maybe have one student go to the front of the room and act out a certain activity. The other students need to write a sentence, using the present progressive, about what he is doing. Have a new student at the front of the room for each new action. Those kids need to be moving around. Any controlled competition would be a good idea to keep the kid's attention. Good luck!