Challenge capsules for students who finish early. After finishing their daily work the students can pick one of the capsules and then complete the task inside. I think it would be a cool idea to color code activities by the lids. That way the students knew that if they picked a capsule with a yellow lid they would be doing a writing activity, a blue lid for vocabulary, a red lid for reading, and so on.
I want to find a way to include this idea in a high school English class. It would be awesome and so much better than kids sitting around listening to their iPods or talking to their friends.