This program guide, designed to be used in prekindergarten programs, was developed by the Jefferson County Public Schools in Lakewood, Colorado. The guide is organized into three major sections. The first section presents the philosophy of early childhood education on which the guide is based, a summary of the characteristics of young children at…

Six experiments were designed in order to compare the cooperative and competitive interaction of five-year-olds with that of older children up to age 10. For all experiments, children of the same age and same sex were matched in dyads. The children played various two-person games where they could obtain prizes in a variety of reward contingency…