Dr. Rheeda Walker is a clinical psychologist and psychology professor at the University of Houston and says a simple explanation is frustration. She says the traumatic video of Floyd being held face down for almost nine minutes is a trigger for recurring anxiety. For now Summer school is the priority. For virtual summer school weve identified 40-thousand students that will have live interactions via computer with a classroom teacher, she said. Watch this weeks Houston Newsmakers Sunday morning at 10:30amMore Information:Grenita Lathan, Ph.D., HISD Interim SuperintendentRheeda Walker, Ph.D.