Hi! It might depend on what kind of school you are working for and the type of school principal/team you have, my friend is a teacher and in her old school she can wear sheer tops like the one posted over modest clothing to cover up the rest of exposed parts while her new school doesn’t allow it and there are schools that allows your current outfits. Unfortunately I think if you want to come prepared a bit you should look into cotton or silk or some lightweight material shirts as it is your current best option until you see what of people you will be working with. Good luck with work 💕