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
Marek Szczepanek/Wikimedia Commons
Larry Busacca/Getty Images
Warner Bros. Television
HRH The Duchess of Cambridge via Getty Images
iStock / MartiSaiz
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Adele.com via CNN
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