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
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Robert Evans/Handout via Getty Images
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Antenne Réunion/linfo.re via CNN
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Jim Rogash/Getty Images
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