The school also ran weekly sessions from non-religious group Kiwi Can. Some parents chose to withdraw their children from the programme, but all pupils attended the non-religious programme. No parents had ever complained, and were told on enrolment the programmes were voluntary.
"[Some pupils] might be from Jehovah's Witness or Brethren or different groups and we respect that - and they don't go."
Greerton Village School principal Anne Mackintosh said her school had chosen to hold religious education out of class time a few years ago and now did not offer it at all. "We decided, through a combination of talking with parents, to make it a choice thing. It was held at lunch time."
That meant children who wanted to could "opt in" rather than parents feeling like their children were being excluded when they pulled them out of such classes, she said. "The crowded curriculum became a bit of an issue. We wanted to make every lesson count."
Secular Education Network spokesman David Hines said since the news of St Heliers broke, several other parents had asked how to make a complaint about their child's school.
Some religious instruction groups used by schools were "denigrating other sections of society" and "casting a slur" on other religions as part of their lessons, he said.
Mr Hines said it should not be up to a school's board of trustees to decide whether its school offered religious education.
New Zealand Principals' Federation president Philip Harding disagreed, but said boards needed to consult with the community before making a decision. "They've got to act wisely but they also shouldn't be browbeaten by a very vocal minority. There are communities where religious education has been part of [their] school for life."
Mr Harding said some St Heliers parents had complained about the school's decision to remove religious education from class time.