Research by data analysis company Infometrics shows the Government's freeze on funding for specialist teachers is actually a funding cut.

NZEI has launched a nationwide campaign today to reverse the Government's freeze on school operations funding for support staff.

It's part of a wider campaign with the PPTA to raise concerns about the Government's new proposed global funding model.

President Louise Green says when role growth and inflation are taken into account it equates to a 0.5 percent funding cut per student.

She argues the National Government snuck it through in its May budget without consulting teachers.

She added the government's additional funding for disadvantage children doesn't make up for the difference of this freeze and it will harm the most vulnerable children.

Green said support employees such as administration staff, teacher aides, and technicians who are already on low pay are now at risk of having their hours cut and the Government's additional funding for disadvantage children doesn't make up for the difference of the freeze.

She said the freeze is unprecedented, no Government as far back as the 90s has ever frozen school funding before.