Notes that the practice of delaying school entrance for summer-born children, especially boys, to give them some academic advantage, is not substantiated by sufficient research. Describes a subsequent study indicating higher achievement for children held-out than those entering school on time. Argues for more research and consideration of the…

This study was designed to determine whether chronological age, the number of permanent teeth erupted, or the combination of the two would predict a child's readiness for formal arithmetic work. Sixty-four children were randomly chosen and three phases of testing conducted. The findings did not support the use of the number of teeth erupted as a…

This appendix includes seven papers which focus on various aspects of the learning processes of children ages 5-7: (1) S. Thompson, "Transitions to concrete operations: A survey of Piaget's writings" (in outline form); (2) S. H. White, "Changes in learning processes in the late preschool years," an examination of cross-cultural…