Dress requirements for in-service week may be simplified into one word: "anything".
As most of the time is spent rotating to workshops and working in the classroom, I try to adhere to outfits that (I consider) are "business casual via summertime casual". I don't know if that makes any sense given that I just made it up.
Anyway, wearing heels wasn't on the menu for me this week. I mean, how impractical would it be for a teacher to wear heels to work?
(During in-service week, that is.)