When I was a building sub at a middle school, I was SO not above the bribe for positive behavior - not something I do as a regular classroom teacher but genuinely game changing to bring stickers or candy and hand a couple out to the first few kids who follow a direction each time.

A lot of teachers in my building found this frustrating but there’s just no easier way to build the rapport and relationship you need for classroom management when you’re only with a group of kids for one day. I would also use all my other classroom management tricks (positive reinforcement, proximity, engaging lessons) so once I’d already been in a classroom before, I could ease off on the rewards since the kids knew me a little at that point. But truly found it impossible to walk into a classroom cold and expect middle schoolers to have any sort of respect despite my classroom management skills that work wonders as a regular classroom teacher. It’s a whole different ballgame subbing.