Perrottet announced a women's economic expert panel to guide government policies yesterday. He called for "revolutionary ideas" to break down structural gender barriers.

Shaking up school ideas was brought up by Perrottet, as something that he states currently in "in his view doesn't work." 

"You've also got challenges with before and after school, childcare issues and early childhood education.'' 

NSW Teachers Federation president Angelo Gavrielatos, however, dismissed the idea as a "throwaway statement".

"Stating that The supervision of students is a by-product of schooling, it's not the primary purpose," he said.

A trial of longer school days will begin in NSW later this year, and schools will apply to take part.