From Mrs. Krabappel on "The Simpsons" to Mr. Kotter from "Welcome Back Kotter," check out some of the most memorable TV teachers.
Mr. Kotter from "Welcome Back Kotter," played by Gabe Kaplan
National Media Museum
Frederick M. Brown/Getty Images for ELLE
Jim Rogash/Getty Images
Jim Rogash/ Getty
U.S. Air Force
Frederick M. Brown/Getty Images
New York Magazine/Twitter via CNN
Bryn Lennon/Getty Images
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