muslimah, are you doing it from university or through home study? Primary or secondary? A few of the apas at our madrasah are also doing PGCE's with niqab. All three do primary so they remove it in the classroom and in and around school and put it on again before they walk out of the school gates. I think it is quite a lot to ask, if you are hoping to wear niqab in and around a state school. Don't end up like the other high profile cases. The other option is to go to Muslim schools for a placement. One of my students is doing hers at a local Muslim school. There's probably some criteria of acceptable schools but it's something to look into. I pray it works out well for you.