A school in New Zealand allows "no rules recess," where kids climb high trees, craft weapons, and ride bikes toward brick walls.
I don't know if they hit the optimum risk/reward ratio when it comes to the FreeRange vs. Helicopter Parenting debate, but I'd trade the status quo for this any day.
A part of the video goes into how free play promotes the psychological development of the prefrontal cortex, which is along the lines of what Peter Gray has been saying (his Ted Talk here).
Hat tip goes to LetGrow for posting the video.
