Yep, that works. You got the length right on the culottes. And you need to wear those red boots with the pink blazer.
That's a perfect look for a teaching day.
ETA: Random thought: I've been teaching today myself and I noticed lately that I have a specific look which I reserve for that assignment. You probably wouldn't notice the difference from many of my other WIW's, but in my mind I'm always trying to create an impression of creative, approachable authority. It's basically all the same stuff, but I try to put it together in a more sober and ladylike way,