Math
Tommy had a pile of workbooks and pencils, more than enough for everyone to take one. He'd left a questionnaire at each seat, so he could work out what everyone knew once he got the sheets back. The seats in his lecture theater were warm and comfy, and the projector was currently in its 'screen-saver' mode and showing a little version of the planet below them above the stage area. He welcomed everyone into the room, told them to lift their stuff and fill in the questionnaire, and let them pick their seats. "You've got ten minutes to fill that in," he told everyone, and drank coffee as he waited, before collecting the sheets with a wave of his hand. He'd look at them after class.
"Okay, hello. I'm Tommy Sully, and at the moment, I'm going to be teaching you both Math and Physics. And both Miguel O'Hara and I will be covering Chemistry until someone more qualified than us shows up. And, uh, possibly a couple of other classes as well. So you're going to get to know me and Miguel pretty well, I reckon. There's no point in starting to teach you anything until I go through the questionnaires, so today I just want to spend time learning about you. And I don't think it's fair to ask you questions without my answering them as well, so you can learn about me too."
Anyone who had met Tommy before now (and hadn't seen him geeking out over something) would have mistaken him for someone else. He seemed confident, he wasn't hesitating over his words or slumping in on himself. It was the same Tommy - the ever-present mug of coffee, the hand supports, Rawm curled up by the lectern he rarely used - but he was enjoying himself. Teaching seemed to be his thing.
"So, I'm Tommy, and this is Rawm." The dog lifted his head and yawned, lightning crackling over his fur as he did so, then dropped his head back onto his paws and dozed off again. "I love math and physics, but I'm very very into Astronomy. Almost all the telescopes around the station are mine, and I've built them myself. I'm a technomage, which is how things will be floating around in the classroom. And I have arthritis in both my hands, and some days are a lot worse than others, which is why they'll be floating rather than me picking them up. I'm telling you this now so that you won't be startled or freak out when you see it."