I've been doing programming as a hobby since I was 10 years old, I've always found my teachers are good at IT but not that good in Computer Science and programming, this year a new teacher joined the IT department who has actual experience in programming etc.
Our school uses two services, a rewards system which for some reason can also show our timetable, and another service for displaying our homework. In my spare time I made a project which combined these two services and showed it to him. As the first teacher with actual programming experience he was impressed and now I get to 'pitch' my project to the teachers higher up.

TLDR; It's good to have a good teacher