Kate, maybe I'm being too straightforward here, but I wouldn't wear that in the classroom as an instructor, unless you were wearing a structured jacket or some sort of cardigan over it. It's too body conscious. When you are at the chalkboard/wipe board, you don't want students noticing the curve of your behind, or the outline of your bra. I think print wrap dresses are easier to wear professionally (somehow the print helps the eye not to notice how form-fitting the fabric is), especially in a heavier, more substantial knit. But the dress would be fab for going out, or as a layering piece.
Just my two cents, of course, but I felt that I should add the academic POV (at least my particular one :). BTW, the color is absolutely the most beautiful color I've seen you wear!