When I started teaching apprentices 20 years ago, a good friend of mine, a chief electrical inspector everyone admired, said
"You're about to learn a whole lot"
I didn't understand the statement, thought it oughta be the other way around, well, it was.... kinda, but he was right, I have learned a whole lot. Some of it downright useful
One quick piece of advice, no matter how embarrassing, NEVER BS you're students, they will always respect an "I'll have to get back to you on that" more than a wrong answer. Then do what ya said and look it up, that's where the "You'll learn a lot" comes in.
Good luck, I'll bet you make a grand teacher.