"Chaos in the Classroom" is the eleventh episode of The Charlie Brown and Snoopy Show. It premiered on November 26, 1983.
"Sally at School"
Peppermint Patty gets mad when Marcie is put on traffic patrol. This may be the only time Peppermint Patty refers to Charlie Brown by his real name instead of "Chuck" on television.
Snoopy's dish is used for second base and Charlie Brown tries to teach Lucy to bat.