Totally inappropriate. I think it is okay to wear sandals with straps but not flip flops, and if so it should be worn with long pants. Just the other day, I saw a teacher wearing TIGHT, WAY LOW CUT jeans and she wore it with a shirt with a knot tied at the bottom, showing more skin than necessary. Let's just say when MISS THANG sits down, her students will see more than they should. BTW: They were on a field trip.