ELKHART, Ind.—A northern Indiana teacher accused of grabbing a student and slapping him across the face has been charged with battery causing moderate injury. A judge on Friday found there was probable cause for the charge against former Jimtown High School teacher Michael Hosinski, 61, of Osceola. The offense is a felony that could carry a sentence of six months to 2 1/2 years in prison. In court documents filed Friday, officials describe their investigation of the Feb. 25 incident in which video appears to show Hosinski grab a student by his backpack, force him into a wall and strike him across the face. The student told an officer that Hosinski followed him down a school hallway after Hosinski asked the student to leave his classroom. The student said Hosinski grabbed his bookbag, then hit him across the face with an open hand causing his head to strike the wall …