Schools where children are failing exams could be taken over by the Government as the Education Minister warns staff need to be held accountable for students' performance.
The availability of more data on how schools are faring, such as national standards results, would help that happen. The scenario has been dubbed "frightening" by one principal, while another said schools should not be blamed for situations beyond their control.
School interventions - where powers are taken away from a board and put in the hands of a statutory manager or commissioner - usually take place after major staffing, safety or financial issues. But Education Minister Hekia Parata signalled a different approach could be needed.
"It's interesting that we are not putting in interventions when learning is not occurring ... I think we need to be moving much closer to that."
Ms Parata said that although the option to intervene because of educational performance was already there, better data and information meant it was now easier to make a call to do so.