The Ministry of Education says it will commit $45 million over five years to programmes aimed at curbing bad behaviour in classrooms.
The New Zealand Educational Institute, which represents primary teachers, says the level of violence is increasing in schools.
There will be five intervention programmes run by the ministry, particularly focused on children between the ages of three and eight.
The Incredible Years parenting programme, which has been operating for the past two years, will be extended to reach 12,000 parents.
There will also be training for teachers and crisis response services.
But Professor John Church, of Canterbury University's school of education, says the funding will not be enough to cover all the children who are at risk.
The schemes will be rolled out progressively over the next year.