The latest incident, a classroom brawl that happened Monday at the high school, was captured on a cellphone.
The district confirmed the two students at the center of the altercation have been suspended.
"The students are being dealt with and both are suspended,” district Superintendent Al Johnson said. “The teachers appeared before the (school) board last night to express their concerns about the high school."
Channel 11 obtained the video Thursday afternoon. It shows two boys fighting in a classroom as their classmates cheer them on.
At one point, one of the students, shirtless, jumps on top of the other and punches him over and over again. Then he picks up a podium full of supplies and slams it against the other boy.
Students can be heard screaming in the background.
It’s unclear if either student needed medical attention or if security will be increased at the school.
The union said it hopes to work with the district to find a solution after some teachers expressed concern for their safety.
"We have made our concerns, frustrations, and experiences regarding the dangerous fights, blatant disrespect and disorderly behaviors known," the union said in a statement.
The principal of the high school, who also served as coach of the football team, resigned this summer after being investigated for threatening a student, not long after the school board president also resigned.
A school resource officer was accused of assaulting and deploying a stun gun on a student in 2015, and a Churchill police officer appeared to be physically abusing a student, whose teeth were knocked out, in a video released last spring.
Community groups demanded charges be filed against Steven Shaulis, the police officer, and parents have filed complaints against him and the district.
Classroom brawl captured on cell phone cameras! The moment a student takes a podium full of supplies & slams it onto another boy.... The video & what Woodland Hills HS officials are saying on @WPXI @ 5. pic.twitter.com/g6mCewFLVi— Mike Holden (@WPXIMikeHolden) November 16, 2017
© 2017 Cox Media Group.