"The blue eyed people get 5 extra minutes of recess, while the brown-eyed people have to stay in"

Over at Dangerous Minds Melissa Sweat wrote about the 1968 "blue eyes/brown eyes" classroom experiment.

The class of third graders are told that blue-eyed people are smarter and better than brown-eyed people. Blue-eyed people get an extra five minutes of recess, and the two groups aren’t allowed to play with one another on the playground. The brown-eyed children wear fabric collars so they can be identified from a distance. When, during recess, one of the children calls the other “brown-eyed” as an epithet and the child retaliates by slugging the taunter, Jane Elliott does what any good teacher would do: the child is reprimanded, but the overall exercise continues.
It was the day after Martin Luther King, Jr. was assassinated in 1968 that Elliott ran her first “Blue Eyes/Brown Eyes” exercise in her Riceville, Iowa classroom. In 1970, Elliott would come to national attention when ABC broadcast their Eye of the Storm documentary which filmed the experiment in action. Below, is a portion from the 1985 PBS Frontline documentary A Class Divided which features the ABC footage as well as clips of a class reunion.

Blue eyes/brown eyes: Jane Elliott’s controversial classroom experiment on racism, 1968