David Seymour believes financial flexibility is playing a role in the rapid growth of charter schools. 

New figures show more than 1,400 students were enrolled in 16 schools as of last month. 

The first seven schools established have seen their rolls jump more than 300% from 215 to 650. 

The Associate Education Minister told Mike Hosking charter schools demonstrate what's possible within the learning environment. 

He says they can be shut down if they don't reach targets like attendance and academics, but in return get the flexibility to use money their way. 

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