WELLINGTON, July 11 - Blue Light Senior Boys High in Taupo will be opened by Blue Light Ventures, which has links with the police.

It will target Maori students with an initial roll of 30, most of them boarders.

Te Rangihakahaka Centre for Science and Technology will open in Rotorua, operated by a consortium led by Rotorua iwi.

It will be a co-ed school for Year One to 10 students with a curriculum based on science subjects.

Its opening roll will be 80 students.

Charter schools - the government calls them partnership schools - are an ACT Party initiative implemented under the party's support agreement with National.

They're state-funded but can be run by business, church or community groups.

They can set their own curriculum and term times, and don't have to hire registered teachers.

The rationale for them is that they can tailor their teaching to suit students who are under-achieving or failing in the state system.

Charter schools are fiercely opposed by the teacher unions, and they reacted quickly to the announcement that two more were going to open.

"The only thing charter schools do successfully is reward mediocrity by using scarce education money to prop up private owners," said PPTA regional chairman Alex Le Long..

Primary teachers union NZEI said 85 per cent of Maori students went to state schools.

"It's a cop out for the government to present charter schools as a solution for Maori, while failing to adequately resource the schools that the vast majority of Maori attend," said spokeswoman Laures Park.

ACT leader David Seymour is in charge of charter schools in his capacity as under-secretary to the minister of education.

He announced the two new schools on Tuesday.

Maori Party co-leader Te Ururoa Flavell says he supports them.

"We know kura hourua (charter schools) are delivering strong NCEA results for our tamariki, which are above mainstream schools students' achievements," he said.