A classroom observation system was used in 1) a nontraditional, open-classroom setting with primarily middleclass students, 2) a Follow Through class in a public school with low income students, and 3) a traditional class in a public school with low-income students. (JY)

This study was one of four designed to develop the methodological, measurement, and research strategies necessary to begin to define, analyze, and understand cooperative behavior among 4- to 6-year-old children in educational settings. Subjects were 30 4-, 5- and 6-year-olds in a kindergarten program. Each of the 30 children was observed for a…