Here is a fun and VERY positive poll I am posting here. I included reading comprehension as an option because reading is an essential skill to have, especially to pass the reading SOL to graduate high school.
I'd teach baby Luigi maths, not because baby Luigi is my favorite, but because I feel like it's the subject I'd be the best at teaching. I'm not sure he'd be old enough to understand much of the subject, but in the Mario universe babies are capable of driving go-karts through incoming traffic, so I don't know what to expect.