Heart pounding, rapid breathing, nightmares...yep, it's that time of year. Back to school...dun dun dun. Okay I actually may be a little dramatic there (ask anyone who knows me, it's not uncommon!). But seriously, every year I feel like this. The anxiety of the unknown plus the excitement of getting back into the classroom and teaching. I think that when I get to the point in my career that I don't feel like this it will be a sign to quit teaching. There are many things that I worry about…