Principals are unhappy with the impact of a funding change on some secondary schools.
Radio New Zealand's education correspondent says this year the Government is recalculating funding for schools every three months. The move is expected to save up to $6 million per year.
It says it is too early to know the effect of the change, but some principals say it is proving to be mean-spirited
They say schools cannot afford to lose the money and additional roll counts are adding to their workload.
The principals say the new system punishes them for initiatives that help students find jobs and apprenticeships.
