Creativity through self-directed learning

This is a suggestion made by Daniel H.Pink in his book 'Drive - The Surprising Truth About What Motivates Us'
"Set aside an entire school day and ask kids to come up with a problem to solve or a project to tackle.  In advance, help them collect the tools, information, and supplies they might need.  The let them have at it.  The next morning, ask them to deliver - by reporting back to the class...on their discoveries and experiences."