Brandon Brown, a former history teacher and assistant high school principal, is now a Billboard-charting educational rapper who performs around the U.S. He founded School Yard Rap, a company that produces music about historical Black, Latino and Indigenous people often not found in traditional textbooks. JAE C. HONG/AP
Cheyanne Mumphrey and Annie Ma ASSOCIATED PRESS PHOENIX – Sit down. Be quiet. Follow instructions. Brandon Brown followed these rules when he started teaching, seeking…