Primary and intermediate schools across the southern region will feature a green tinge today as some pupils and staff dress in green to show support for their principals.
The national day of support will also include a range of activities at schools, from morning teas to street corner sign waving and school gate flyering.
New Zealand Educational Institute president Lynda Stuart said principals stood alongside teachers and helped achieve their pay settlement, and now it was important teachers showed their support.
"The day of support will be an opportunity for school staff and whanau to show they back their principals, and to say that if pay parity is fair for teachers, then surely it's fair for principals too," she said.
Primary and intermediate principals who are institute members rejected a collective agreement offer from the Ministry of Education in June because it failed to give them parity with secondary principals.
They have been taking strike action since the start of July, in which they have disengaged from Ministry of Education work streams, including task forces and working parties.
The principals will meet at a series of paid union meetings next week to decide whether to increase industrial action, or to consider any last-minute offers from the ministry, she said.
