The association (OPPA) held an emergency meeting yesterday to discuss the Government's surprise changes.
President Brent Caldwell said the association had decided to mobilise all school communities to galvanise opposition to the cuts that would affect all Otago children.
"These changes affect all children in all Otago schools.
"This means all parents, all boards, and all communities will lose out.
"It is a fact that under these changes, all class sizes as we know them will increase.
"Fewer teachers teaching bigger classes with more children cannot sustain the current curriculum programmes Otago's children experience."
OPPA executive members opposed the changes and had called on all communities to voice their concerns to the Government, he said.
It was hoped a public meeting could be held at the Regent Theatre within the next two weeks, to give everyone the opportunity to share their concerns, and let the Government know that Otago children mattered and that their education counted, he said.
"We need the Government to focus on sense, rather than dollars," he said.
