A teachers' organisation says a leaked document shows New Zealand has joined a group of countries pushing for education to be included in a murky trade deal.
The New Zealand Educational Institute said the Trade In Service Agreement (TiSA) was bad news for teachers and education academics.
The Institute's national secretary Paul Goulter said the deal would lead to foreign corporations suing any government that tried to legislate against the expansion of charter schools.
Mr Goulter said the deal could lead to further "commercialisation and privatisation of education", with negative impacts on the quality of education available to Kiwi students.
Other teachers' unions were aghast after seeing the leaked document.