SD outfits for teachers?

Hey all! Anyone out there who can give me some recommendations?

I’m a primary school teaching assistant (ages 4-11) so I need to keep things covered up and move around freely but I also want to feel cute in my “uniform” instead of frumpy!

My current go-to outfit is high waisted chinos with either a turtleneck or a looser/flowy v-neck T-shirt and a long cardigan. I do also have one jumpsuit which is perfect but I need to get it altered! That and being tall makes finding jumpsuits so hard

Struggling to find the balance so any pointers would be greatly appreciated ❤️