Another 2nd grade teacher and I are swapping kids on Monday so that the other can do running records. I will have 50 2nd graders in my room for 2 1/2 hours. I plan on spending the last 30 minutes doing buddy reading, but I need to fill the first 2 hours. We have to stay in the classroom, so activities like extra recess or gym time or not possibilities. There are a lot of needy kids in this group (i.e: behavior problems), and I will be alone with them. The other teacher is showing a 2 hour movie (which we're not supposed to do...), so I don't want to do that. Any fun, easy, not-too-crazy ideas?