Video recorded on an elementary school playground, for comparison with video data in the same school's hallway, conducted for my dissertation research. To access a similar video clip of the hallway, go to http://www.archive.org/details/playground1. Four other video clips of the hallway are available by changing the last digit in the address to a 2, 3, 4, or 5. To access the complete dissertation on school hallways, go to http://www.don.ratcliffs.net/qual .