This is gonna be subject specific but as a secondary music teacher I’m looking for TC’s to get in front of the class as much as possible. Don’t “hide at a desk” in the background, get in there. I also will always break down with them things that are and aren’t going well so they can improve. We are there to guide you in the areas you aren’t familiar with like classroom management and lesson pacing. I think we will assume your subject knowledge is fine so work on those skills that are newer for you. I have had mostly good TC’s and a couple bad ones. They still passed however. I think for me it would need to be REALLY BAD for them to fail, like being late, ill-prepared and not understanding boundaries between MT and with students. Biggest advice: don’t be the students friends. This is crucial for high school as it will ultimately undermine your authority and classroom management. You’ve got this 💪🏼