Fifth graders at Hazel Harvey Peace Elementary school in Fort Worth, Texas told their parents a music teacher divided the class by race, as well as insulted their families.

“He called the class stupid, and when he separated the black kids from the white kids, he told the black kids, ‘I know where y’all from’,” parent Sandra Lee told CBS Dallas-Fort Worth. “He said, ‘I can tell neither one of y’all get punished at home.’”