Some of the nation's new charter schools claim they are being 'swamped' with applications before they have even opened.

Seven of the publicly funded, privately owned schools are scheduled to open their doors over the next two weeks - and they're seeing plenty of demand.

Mastery School principal Rose McInerney says her school has 60 primary-aged children enrolled, with a further 40 wait-listed.

"What we do with those children is - we have a longer school day as a starting point, we have two hours of maths and two hours of literacy. We are teaching with direct or explicit instruction, and that's quite a lot to go into."

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