The Minnesota Department of Education approved a transgender toolkit that lets male students who identify as girls use the girls bathroom.
"A policy that requires an individual to use a bathroom that does not conform to his or her gender identity punishes that individual for his or her gender nonconformance," the document reads, quoting a court case.
The toolkit also advises teachers to refer to students as "scholars" rather than girls or boys, and the prom king and queen as "prom ambassadors."
"Schools should not assume a student's name or pronoun," the toolkit says.
The guidelines were approved by the "School Safety Technical Assistance Council" last Wednesday.
Minnesota state representative Tim Miller (R) said he is disappointed with the department's decision.
"I really feel like common sense has sort of left the room and the department of education is really focusing on something that is not supported by the people of Minnesota," Miller told "Fox & Friends."
"There's a social agenda."