The government says it isn't going to stand for bad behaviour at school.
Education secretary Ruth Kelly is announcing new plans to get schools to work together to deal with disruptive kids who stop other children learning.
The Conservatives, the government's rivals, want to give heads more power to exclude badly behaved children and send them to special schools.
The annual school inspectors' report is expected to highlight how badly behaved kids hold other children back.
Mrs Kelly apparently wants schools to get together to set up special units for kids who have been removed from normal lessons because of their behaviour.
She said: "It must be a basic right for every parent that their child gets an undisrupted education."