学がっ級きゅう崩ほう壊かい

noun

classroom breakdown; class disruption

Refers to a state where a class becomes dysfunctional due to severe discipline problems, often with students ignoring the teacher and lessons becoming impossible.

• その学がっ校こうでは学がっ級きゅう崩ほう壊かいが深しん刻こくな問もん題だいになっている。

  Classroom breakdown has become a serious problem at that school.

• 新しん任にんの先せん生せいは学がっ級きゅう崩ほう壊かいにどう対たい処しょすればいいか悩なやんでいる。

  The new teacher is struggling with how to deal with classroom chaos.