Primary teachers' union blames lack of workforce planning, and an oversupply of new graduates.
Six-year-old pupil was "running around" for 45 minutes before police stepped in.
Christchurch students with complex behavioural and mental health problems are increasingly relying on school teachers for support post-quake.
A school's bid to keep its name suppressed has been heard in the High Court at Invercargill.
Hamilton supermarkets urged to be part of discount card scheme.