A talk for the online lecture series TED in 2006 launched Sir Ken Robinson's ideas to a global audience. He spoke about creativity in schools for 20 minutes, and the video has been watched more than any other TED Talk, with 27 million views so far.

In conversation with Sarah Montague, he argues that modern teaching is a product of industrialisation, putting children through a factory model that prepares them for working life. But if we truly value innovation and creativity, why isn't it taught?

For the programme, Sir Ken returns to the former Margaret Beavan Special School in Liverpool, where he spent his primary school years in the 1950s, after contracting polio at four years old.

He's since advised governments and businesses around the world on how to harness creativity, and believes if schools were radically different, giving creative subjects equal status, children would find their true talents.

Presenter: Sarah Montague Producer: Joel Moors.