The first part of this study examined children's concepts of "preference of racial diversities" (PRD); nonviolent conflict-resolution (NCR); and "negative peace" (NP), defined as "peace in contrast to war." The first part also assessed children's mental development. The second part examined the relation of children's…

This study investigated the independent strategy development of 7- to 12-year-old children from the suburbs of Brisbane, Australia in solving a series of novel, two- and three-dimensional combinatorial problems. For each of the problem types, a sequence of five, increasingly complex, strategies was identified from the children's actions and…

The concept of diffusion may seem easy enough for many teachers to understand, but when and what do students really understand about diffusion and osmosis? In order to answer these two questions, 116 students (46.6% in the tenth grade, 30.2% in the eleventh grade, and 23.2% in the twelfth grade) enrolled in biology classes were administered tests…

This book presents issues concerning relationships between mathematical knowledge and the teaching and learning processes, focusing especially on the genesis of mathematical knowledge in the classroom. The chapter titles are: (1) The Fragility of Knowledge (Guy Brousseau and Michael Otte); (2) The Double Bind as a Didactical Trap (Stieg…

This study tested 148 preschoolers between the ages of 48 and 72 months on a Piagetian number conservation task. Children's judgment accuracy, estimation, and response latency were measured. Children were also questioned about the number conservation principle. A four-step developmental sequence was hypothesized: (1) nonconservation; (2) correct…

A study examined the developmental shifts in the importance of linguistic components of words to single word decoding. Subjects, 1200 children ages 6-7, 8-9, and 10-12.5 years who were the normative sample of the Kaufman Assessment Battery for Children (K-ABC), were tested using a word recognition test, the Reading Decoding Subtest of the K-ABC.…

This study examined characteristics of a group of adolescent mothers and their infants who participated in an intervention program run by a public health department. The subjects were administered a structured interview and a measure of self-esteem, and efforts were made to obtain their school records from local public schools. The Mental Scale of…

Adolescence was the focus of an Urban Development Forum, a component of the Research for Better Schools, that explored the factors of effective schooling in terms of their impact on young people in large, urban systems. This forum featured a major presentation by Joseph Adelson. Focusing his presentation on the cognitive growth in adolescence, he…

This four-chapter monograph, translated from a 1977 Russian book written originally in Russian for Russians, describes methodology and results of the study of cognitive activity in children with cerebral palsy. An initial chapter reviews research on impairments in cognitive activity and speech defects in such children and on methods of…

Approximately 500 works concerning acquisition of French as a first or second language by children from infancy to adolescence are listed. Although works on prelinguistic development are not included, research on comprehension during this period is. Studies of early simultaneous bilingual development are included if one of the languages is French.…

Previous research in classification preference has focused on only a few selected age groups. To investigate the classification preferences of individuals from early childhood through old age in the same study, 144 individuals between the ages of 4 and 70 completed a revised version of the Conceptual Styles Test. Analysis of results showed that…

Suggesting that the concept of structure employed by political scientists in the analysis of belief systems is inadequate and misleading, the paper discusses Jean Piaget's concept of egocentrism as a theoretical alternative to belief systems analysis. The purpose of the paper is to provide political scientists with a short but comprehensive…

Five papers are presented from a 1982 conference on "Developmental and Clinical Aspects of Young Children's Play." In the first paper ("Cognitive Characteristics of Young Children's Play,") S. Rogers summarizes J. Piaget's theories on developmental stages, discusses the relationship of practice play to learning, and then…

Reviews the literature from the three standpoints of learning theory, psycho-analysis, and cognitive developmental theory and suggests that investigations explore specific socialization practices that contribute to both personal integration and moral maturity. (Author/AM)

A criterion for development of syllabi for mathematics courses is discussed. This criterion is based on the biogenetic law that individuals develop through all the stages of the development of the species. (SD)