Mrs. Klemperer is the Kindergarten teacher at Third Street Elementary School. She first appears in the episode Wild Child. Throughout the series she is only shown without a neckbrace once, teaching kindergarteners with real clothes on and acting normal, in the episode 'Mikey's Pants.' One can assume that the kindergarteners caused her neck injury.
Friends: Miss Finster, Principal Prickly, Miss Grotke, TJ Detweiler, Vince LaSSao, Ashley Spinelli, Gretchen Grundler, Mikey Blumberg, Gus Griswald, Randall Weems and Menlo
Enemies: Earwin Lawson, Gelman, Conrad Mundy, Greg Skeens, Sue Bob Murphy, Lazy Kid, Chucko Kowalski, Jocko, Buster, Cheay, Koreo and Kurst the Worst
Likes: Teaching kindergarteners with real clothes on and acting normal and keeping kindergarteners in order
Dislikes: Kindergarteners going wild and kindergarteners chasing after Big Kids