Tested was the hypothesis that science instruction based on task analysis will lead to the acquisition of the ability to perform certain Piaget volume tasks which have been characterized as requiring formal operations for their solutions. A Test on Formal Operations and a Learning Hierarchies Test were given to fourth- and sixth-grade students in…

Describes a study which used fourth and sixth grade children who had used Science - A Process Approach" and compared their performance with that of a control group on two conservation-of-volume tasks. Performance of the volume tasks was found to be related to age and score on the Learning Hierarchies Test and not to previous science program…

Twenty second- and third-grade children were tested on their ability to make judgements of certain area and volume equivalences. The children were then presented a conservation-of-liquid task. Of the 17 children who gave correct conservation responses, only two had solved the area and volume problems. Thus, contrary to what is suggested by…

Investigates the effectiveness of two conflict-producing procedures: (1) Peer interaction and conflict training; and (2) Teacher conflict training in promoting the development of logical thinking of fifth-graders as measured by the acquisition of conservation of area. (HM)

Explores the cognitive development of Nepalese students by administering Piagetian-type tasks and comparing geographically and culturally different children. Boys and girls (N=256) of ages 8, 10, and 12 were administered tasks of conservation, classification and seriation, and causality. Implications for curriculum development in Nepal are made.…