"Let's play The Quiet Game!"
That got my attention. I watched as a couple students wheedled the rest of the class into going silent.
Immediately, someone on the other side of the room started giggling.
It took a couple more tries, but then the room went completely silent.
For about 15 minutes.
Keep in mind that this wasn't a "silent assignment". I didn't care if they talked. In fact, the silence surprised me. Of course, it didn't last. They finished their work for the day...
...And then decided to play Heads Up Seven Up.
Just another fun day in AP physics.
(Before I get into trouble with you all, understand that first these were juniors and seniors. Taking an AP class. Likely, this is not their only AP class, so they're of the high academic achievement group.
Second, they had completed the day's assignment and turned it in to me before they started the game. Third, of all the things they could have done with the rest of the period, this, while juvenile, was the least likely thing to cause problems.
Fourth, I could have put a stop to this at any time and I would have if I had seen a danger to anyone or anything. If I had stopped them, I have no doubt they would have stopped and found something else to do. And fifth, I did put all of this in the note to their teacher.)