Primary school principals are dropping all Ministerial work and refusing to work outside of business hours from today.
The principals' two-month work ban protests the Government's pay offers, with the sector union rejecting the last two.
This comes as the secondary teachers union (PPTA) began rolling strikes as they protest pay and working conditions.
NZEI Te Riu Roa president and primary prinicipal Mark Potter spoke to Ingird Hipkiss.