There's claims the Ministry of Education hasn't delivered on key promises. 

Specialist teachers are slamming the draft curriculums for music, PE, science, technology and history. 

Auckland University Associate Health Education Professor, Darren Powell, says there are positive elements.

But he says he's concerned there's too long between introducing students to concepts, and expanding them further.

"When they've talked about carefully sequencing content across those 10 years, there's large gaps. It hasn't really been sequenced very well at all." 

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