That's CRAZY!
Man. I'm a public school student.
The last thing I worry about walking into the class room is what my teachers are wearing! It has no influence on my grades at all. (if it did....I'd be a straight F student. Some of my teachers are lacking in the fashion department!) ....What? I didn't say that.
My school is pretty much the same way. The teachers have to dress "nice" Mon-Thurs, then on Friday its casual.