The Collaborative International Dictionary
Misteach
Misteach \Mis*teach"\, v. t. [imp. & p. p. Mistaught; p. pr. & vb. n. Misteaching.] [AS. mist[=ae]can.] To teach wrongly; to instruct erroneously.
Wiktionary
misteach
vb. To teach incorrectly.
Usage examples of "misteach".
How that was twisted and mistaught in schools, churches, books, and scholarly disciplines!
It did not occur to him to think of the mother when he was misteaching the boy, for he was absorbed in providing PLEASURE for himself, then.