From the Austin-American Statesman:
Analyzing nationally representative data from the U.S. Department of Education on 15,000 high school students and their teachers, Riegle-Crumb said one of the surprises of the research was that the bias against white girls was not affected by the teacher’s gender.
“We had almost as many male math teachers as female,” Riegle-Crumb said. “We had about 45-47 percent male teachers. We thought maybe female teachers were more likely to buy into the stereotype because they’re women themselves, or men were more likely to embrace it because it favors them. We found no difference.”