What is a "Flipped Classroom"?

There has been a lot of buzz lately about the flipped classroom. But what exactly is it? Is it something we should be doing?  Read this helpful article from Education Next.org.

Education Next: The Flipped Classroom

Or if you don't really like to read, here's a graphic summary:

Graphic Summary: The Flipped Classroom

"Don’t use technology in the classroom, use it before and after, outside of the classtoom. Classrooms were never designed for technology.... Flip the classroom. Assign the short talks for homework, THEN use the classroom for the application of the concepts. The net result is that you humanise the classroom. It becomes a place primarily for learning, not teaching. Simple, but like most great ideas - brilliant." 
Read more at:   Donald Clark Blog: Flipped Classroom