A teacher at Bartram High School was attacked by a student and suffered a concussion this week after being thrown to the ground in an incident that was captured on video and widely shared on social media reports Philly.com.

Substitute teacher Pewu Johnson, 68, 'reprimanded student for having girl sit on his lap'. It is alleged that the student later confronted the teacher in the hallway and that is were the incident happened. The teacher was knocked down to the floor and suffered a concussion school officials said.

'He grabbed me, then lifted me up, then dropped me on my back, on the floor. I became unconscious. I wasn't hearing anything. I was out.' Mr Johnson told The Philadelphia Inquirer.  

Following the apparent assault, Mr Johnson was rushed to hospital, where he was examined and treated for concussion. He was released several hours later, NBC Philadelphia reported.