California’s Rocklin Academy has a long waiting list for admissions, but that isn’t stopping some parents from pulling their children out of the prestigious charter school after a kindergarten class was exposed to transgender “indoctrination” without parental notification.

Several families have pulled their children out of the Sacramento-area school since the end of the last academic year, when a male kindergartener was reintroduced to his class as a girl and two children’s books espousing transgender ideology were read to the class.

Karen England, executive director of the pro-family Capitol Resource Institute, has been working with Rocklin families to enact a policy that would require the school to notify parents before controversial matters are discussed in the classroom, but the school has resisted.

“There are overall 11 families that have pulled their kids out of that school,” Ms. England said. “A minimum of 11. There may be more — I just found out about another one today. A lot of parents are just finding out about this, so it’s just the beginning.”

Elizabeth Ashford, a spokeswoman for Rocklin Academy, confirmed that seven children officially have been unenrolled since the end of the last school year. She downplayed the matter, saying it is common for children to change schools for a variety of reasons.