This post was inspired by this Huffington Post blog: http://www.huffingtonpost.com/joe-robinson/why-is-the-key-source-of-_b_809719.html
Joe Robinson makes a good case for adult "play". I think the idea makes perfect sense. Unfortunately, we do very little of this in schools. This is especially true of secondary education. Personally, it's all I would do if it were not for the scorn of my colleagues, administration, and even parents.
There is a widespread belief that "play" and productivity are two mutually exclusive concepts. One cannot exist without the other. Nothing could be farther from the truth. We learn best when we play. Teachers should strive to include more elements of play in their classroom.
Teachers are fond of complaining about disengaged students. When is the last time you felt disengaged when playing? Yeah, same here... never. Let's face it, seriousness blows.