Three Auckland secondary schools now have Covid-19 cases to deal with - Avondale, Northcote and Lynfield Colleges, where students and staff have been told to isolate and get tested.
A teacher at Avondale has been confirmed to have the novel coronavirus, as have a student at each of Northcote and Lynfield.
Both Avondale and Northcote Colleges are listed on the Ministry of Health's locations of interest, as well as buses 95b or 95c between Northcote College and Glenfield.
Lynfield College principal Cath Knell told Checkpoint she wanted a testing site at the school.
"Please can we have a pop-up station at Lynfield College - that is a point of conversation we have had today, our request is being taken seriously and forwarded on but I think the sheer logistics of providing resources and staffing means that is not likely to happen in the near future," Knell said.
The school had told families there would be no learning on Friday, she said.
There had been a halt to online learning until Tuesday to "give them a bit of a breather".
File image. Photo: RNZ / Marika Khabazi
Meanwhile, Principals Federation president Perry Rush said teachers have been preparing for more remote learning next week, given the country will be in alert level 4 until at least the end of Tuesday.
Teachers were organising resources and computers for children who needed them, he said.
"The most significant challenge that principals and teachers have had this week is just getting those resources into the hands of young people and they have been unable to do that because we were called into lockdown so quickly.
"The main focus now is this coming weekend and as Monday arrives, working to get those hard copy resources or digital resources into the hands of young people."
Schools knew the Delta variant was a "different ballgame" and were anticipating the lockdown would go for longer, Rush said..
"We know that source is in Auckland and the northern part of the country and we would expect that there might be a continuation of a lockdown there at a higher level than the rest of the country."
Papatoetoe High School principal Vaughan Couillault's advice was to plan for all of next week at level 4.
"That will mean you under the least amount of duress come Monday afternoon when the announcement comes."