This show was great. And I feel it was clearly under appreciated, especially since it only got 13 episodes.
It featured Rick Moranis as a cartoon character who is a teacher of a class with the most difficult students. To make it even worse, the students are all monsters, literally!
In every episode every character gets his or her own episode so we get to know that monster a little better. It is too bad it only got this many episodes since there was so much more potential in it, like seeing where the monsters live, their homes, and the other random monsters in school getting parts too as well.