With less than a week to go until a nation-wide teacher mega-strike, unions say the potential to call it off is in the Government's hands.

The primary and secondary school unions have both voted on industrial action after faltering negotiations.  

It means that more than 50-thousand educators will be picketing on Thursday.

PPTA Acting President Chris Abercrombie told Heather du Plessis-Allan that the offered payrise was a lump sum of six-thousand dollars over two years.

Abercrombie says any resolution before Thursday requires the Government meeting their demands.

LISTEN ABOVE

• School's out: Teachers vote to strike across NZ
• NZEI President: Conditions are a bigger factor in teachers' strike than pay
• Heather du Plessis-Allan: Raise pay for teachers