In a striking example of how cell-phone cameras are making what goes on behind the classroom door more public, a teacher and three other educators at a Houston charter school were charged June 21 in connection with the videotaped beating of a 13-year-old boy who was attending the school, reports the Associated Press. Teacher Sheri Lynn Davis, 40, was charged with injury to a child, a third-degree felony, and could face up to 10 years in prison and up to a $10,000 fine if convicted, said Harris County District Attorney’s Office spokeswoman Donna Hawkins. A cell-phone video recorded by another student shows Davis pummeling a 13-year-old boy in class on April 29. She was fired the following week from Jamie’s House Charter School in northwest Houston. Three school employees—including school superintendent and founder Ollie Hilliard, principal David Jones, and a teacher who witnessed the attack, Gabriel Moseley—were charged with failure to report child abuse, a misdemeanor charge, Hawkins said. Those defendants face up to one year in Harris County jail and up to a $4,000 fine if convicted. In the video, Davis is seen shoving, kicking, and dragging the student, Isaiah Reagins, across the classroom floor as he tried to protect himself. Reagins suffered a black eye and other bruises in the attack. His mother, Alesha Johnson, sued Davis and the school…