Secondary school teachers will begin strike action again on Tuesday, with Year 9 students affected.
It comes after primary and secondary school teachers took part in a "mega strike" on May 29 following months of stalled negotiations and a series of rejected pay offers.
Members of the Post-Primary Teachers' Association (PPTA) are taking part in the two waves of industrial action.
In the four-week initiative called "rostering home," teachers will opt not to teach a chosen year group on a particular day.
They will also take part in a week of rolling regional strikes, striking on a specific day of the week depending on where in the country they live.
Year 9 students, of which there are more than 53,000 enrolled, are the first to be affected by the action.
PPTA president Jack Boyle said it was up to principals whether students were told to stay home, or whether alternative arrangements were made for them at school using non-PPTA members.
The Ministry of Education could not give a breakdown of what each school is doing as they were not required to inform the ministry, a spokeswoman said.
The ministry's deputy secretary Ellen MacGregor-Reid said: "Given this action only affects one year group at a time and will not affect the full school day for teachers, striking teachers will still be getting paid.
"It is important for parents to know that schools will still be open and they are able and entitled to send their Year 9 child to school today, where at the least supervision should be provided."
Prime Minister Jacinda Ardern spoke to Breakfast on Tuesday morning about the strike action.
Ardern said Education Minister Chris Hipkins will meet with PPTA and the New Zealand Educational Institute on Thursday with a view to ending the collective agreement standoffs.
It would be a good opportunity for everyone to sit around the table, discuss the matter in good faith and hope for a resolution, she said.
During the mega strike, Hipkins said there was no more money in the Government's coffers.
He told teachers to expect "disappointment", saying the offer to primary and secondary teachers, worth $1.2 billion over four years, would not be increased.
"There's not going to be any more money so they can choose to accept the offer, they can ask for the offer to be reconfigured. But striking, in the hope that more money will eventuate, is going to lead to disappointment," he said.
Rostering home strike:
Tuesday, June 4: Year 9 students
Tuesday, June 11: Year 10 students
Tuesday June 25: Year 11 students
Tuesday, July 2: Year 12 students
Rolling regional strikes:
Monday, June 17 – Tāmaki Makaurau, Northland, Manukau, Hauraki-Coromandel
Tuesday, June 18 – Waikato, Taranaki, Central Plateau, Bay of Plenty
Wednesday, June 19 – Otago, Southland, Aoraki
Thursday, June 20 – Canterbury, West Coast, Nelson, Marlborough
Friday, June 21 – Wellington, Hutt Valley, Wairarapa, Manawatu-Whanganui, Hawke's Bay, East Coast