A Nevada public school district recently voted to approve a controversial new sexual education curriculum for fourth- and fifth-grade students that uses the phrases “boys and people with a penis,” “girls and people with a vulva,” and “assigned sex at birth.”

The Washoe County School District Board in Reno, Nevada, approved the new curriculum on Tuesday in a 5-2 vote. The Sexuality Health and Responsibility Education program will be taught to fourth-grade through senior-year students.