^ That's what my unimaths teacher did as well, BSci(Advanced) or something for the smart kiddies.
@thushan same goes for my English teacher this year who used to go to PLC and is really smart and people are like "why would you want to come back here to teach?" You may know her, Mrs Thomson? she used to teach at Scotch. Best English teacher EVER and she's younger and less experienced than most of the others. Actually, come to think of it, my unimaths teacher is also younger and less experienced than the rest of the maths staff. Maybe decades of teaching breaks their morale or something.
EDIT: +1 Paul, teaching is fun when you teach something you love and the kids are interested. That's why I'm volunteering to tutor refugee kids next year, I love watching people's lightbulb moments when they get what you're talking about.