There's support for teaching Kiwi students about healthy relationships and consent as part of a refresh of school sex education standards.

Gender and sexuality guidelines are being removed - and an expert group will rewrite the curriculum. 

An Education Review Office report has found too much inconsistency in what's taught.

Advocacy group Rape Prevention Education's Debbi Tohill says young people need to really understand what consent means. 

"We can't begin early enough, I don't think, to be talking to our children about consent."

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