Thinking out of the box- where did it come from?

Posted by JJ on December 08, 2001

Hi there
My mother is puzzling over this for a class (she is a teacher) and I am trying to help her out. I found some reference to this expression in old forum postings, but no real answer to the question, 'where does this expression come from.' It is very trendy (annoyingly so), but where did it originate? Is it a product of the cybermarket or does it have older roots?
Any takers? Please feel free to email me directly with a response, as well as posting it.
Thanks, this is a great forum!