A Thai teacher faces prosecution after cell-phone camera footage showed him beating a pupil and slamming the boy’s head into a whiteboard for forgetting his textbook, AFP reports. The video, shown on local television stations, showed the male teacher at a privately run Thai-Chinese secondary school in Bangkok grabbing the 12-year-old by his throat and hitting him around the head several times. The 29-year-old teacher reportedly snapped when the boy responded using rude language after being reprimanded for failing to bring his schoolbook to class. Education Minister Jurin Laksanawisit said the teacher had resigned from the Kwongsiew Thai-Chinese school but could still face charges. There has been concern in Thailand in recent weeks after several video clips of student brawls filmed on cell phones were posted online.