I am getting a lot of conflicted advice. Pretty much all of the literature on classroom management teaches us to teach procedures on the first day of class and MAKE SURE our students know the rules and consequences for their action. However, my mentor told me not to stress the rules and consequences on the first day (and definitely don't rehearse procedures). She told me I definitely need to let them know the rules, but I don't need to spend a lot of time on it (and I guess just deal with them naturally as the need arises). What should I do? I will be teaching 9th grade English.