Mr. Tigerl

A saber tooth tiger skeleton and one of the 3 teachers. He also has a loud roar that scares people. He is very sensitive and likes to read romance novels. He's the teacher of the Blue Spider class.

Description
Finally, there's Mr. Tigerl, the saber toothed tiger and teacher of "Blue Spider." Naturally, he's the loudest and most temperamental of the three, but he also has his sweet and sensitive side. He even loves reading romance novels, which make him cry.

Some of the meaner students try to shame him for it, only for the kids to love him more than ever. God this show is cute.

For the most part, there isn't much of a theme to which students are in which class unless you go by the personalities of each teacher, and the fact that the biggest nerds seem to be in Pink Toad. I guess I'm a Pink Toad, which is good, because I could listen to Ms. Peginand read a phone book and not get bored.