When I walked into the secretary's office to check in, she was on the phone with the sub caller. She was discussing me and why I had been given a certain assignment.
Apparently, I was in for a long term sub. For the day.
It was a math class. The long term sub had left me lesson plans. So, I was well prepared. But it threw the kids for a loop.
I guess it never occurred to them that a sub might need a day off. Their teacher had been out for a while (maternity leave). I explained that this was not a "changing of the subs". Their sub needed the day for whatever reason, and she would return tomorrow.
The long term sub is doing a good job with them. They have not gone wild. So, for me it was just like any other sub day. I took roll, gave the assignment, and watched to make sure they stayed on task.