Maria Keffler — a mother of three and former teacher with a master’s degree in educational psychology — has a warning for Northern Virginia families: “Our children are being experimented on.”

Following news that a public school in Arlington, Virginia is teaching Kindergartners about transgenderism, Ms. Keffler revealed in the Sunday Washington Post that Arlington Public Schools (APS) are now considering the following:

• Every child in APS would be taught transgender theory.
• If a boy said he felt like a girl, he would gain access to the girls’ restrooms, locker rooms and changing areas. No adult may question him.
• Said boy could also sleep in the girls’ quarters on school trips — and other students in the room could not be removed at a parent’s request.
• Said boy would get to compete in girls’ sports. (If your daughter hoped for an athletic scholarship, start working on Plan B.)
• Teachers and staff members, regardless of opinions or convictions, would be required to teach and promote transgender ideas.

According to Ms. Keffler, the changes listed above are driven by ideology, not science. “In truth, APS is part of a larger set of trials to which I as a parent have not consented for my children,” she wrote. “David Aponte, co-chair of the local chapter of GLSEN, formerly the Gay, Lesbian and Straight Education Network, said last year that Northern Virginia and California have served as laboratories for policies regarding lesbian, gay, bisexual and transgender issues.”

On Monday, Ms. Keffler was on WMAL’s Larry O’Connor Show, to discuss her op-ed. “This is not just about Arlington Public Schools,” Mr. O’Connor said. “You know this is about Fairfax and Montgomery and Prince Georges and all around.”