Every Tuesday we bring you a TED Talk on education we find especially thought-provoking. Today's talk is from the renowned education-blogger Will Richardson.

A parent of two middle school-aged children, Will Richardson has been blogging about the intersection of social online learning networks and education at willrichardson.com. He is a former public school educator for 22 years, and is a co-founder of Powerful Learning Practice, a unique long-term, job-embedded professional development program that has mentored over 3,500 teachers worldwide in the last four years.