8th grade English. They were reading an article debating whether or not school should start later in the day.
Reading something together as a class has some special concerns for a sub. Since I don't know the kiddos, it's hard for me to pick readers. I prefer a randomizing agent of some sort.
Some teachers leave cards with student names. This day I was out of luck, however. But I did have a class roster with numbers.
After the first kiddo (a volunteer) read, I said, "Pick a number between one and thirty-six".
He did. I found the number on the roster and read out that name. (While I could have them pick a student on their own, this can become problematic depending on the day. These classes were a bit wound up, so I didn't want to add in that excitement.) A couple times students picked numbers of absent students. Then I'd just go one up or down.
I thought my system was rather transparent. Apparently not.
When one reader finished a paragraph, the rest of the class started calling out numbers. The reader would pick one. And invariably, the reader picked would be surprised. As were the students calling out numbers.
"But I'm 21..."
The boy pointed to the number etched into his desk. I hadn't realized the seats were numbered. But no, I wasn't going by seating chart.
Even after this, they still shouted out numbers. Ah, 8th graders.