Language as an identifiable cognitive behavior must be studied in relation to identity and memory, all of whose structures undergo progressive changes as the child develops. The organization of the development of the organism depends upon relatively ordered structures of growth, following foreseeable pathways or creodes. The processes occurring…

This study examines problems related to (1) the development of children's understanding of temporal cycles, and (2) the relationship between cyclic concepts and cognitive development. Piagetian tests of classification and seriation and a variety of specially designed cyclic tasks were administered to 62 children, ranging in age from 4 to 10 years.…

Four types of proportionality problems were administered to: (1) secondary school students who were enrolled in Project Physics, and (2) students not enrolled in physics. Both samples were randomly selected. Groups were not found to differ significantly in problem solving ability but both revealed that the ability to solve certain problems was…

This study examined the effect of an innovative teaching activity to improve concrete operational thinking skills with preschoolers in Head Start programs. A "learning set" of classification games and seriation games was used to teach the oddity principle and insertion into a series. These games were played with the children using toy ponies and…