This week I was facing the challenge to have students work independently on three stations without giving them clear instructions on what the activities were about. There was one over arching theme: communication to reach a common goal. Each station had its own iPod with speakers and a QR code linked to an instruction video related to teambuilding. Look for yourself at the video to see how the students enjoyed working like this. The comment most heard was; we had more time to play, we could start quicker and it was just cool to be your own "boss".
The QR sheets are available under ICT in PE - Teambuilding. And since I and the kids enjoyed this work form so much I used it for a badminton class too with the dropshot and smash.