Sponge activities are wonderful for helping with classroom management and discipline. Using these simple activities can give truly involved teachers an edge on how to "soak up" every valuable moment. Sponge activities make for a great bell work, rainy day activity, filler activity, sub activities, or just a little something to spice things up when you see the kids have just mentally checked out. Some of these are quiet work (when you need a peaceful moment to your self) and others can be loud, collaborative, and fun. You can alter any of these to your needs.