Wertsch's clarification of Vygotsky's claims about the role of social interaction in the development of children's thinking made an important contribution to educational research. Revisiting that clarification, I suggest that "talk" instead of "speech" best describes Vygotsky's concern with the functional dynamics of dialogue rather than the…

Examines the feasibility of including instruction in common schemes of inference in the elementary grades. (CP)

Cites reasons for the formation and continuance of the Intellectual Development Project ( IDP). The impact of IDP research is described. (CP)

This research study shows that it is possible to advance the use of proportional reasoning of many secondary school students by means of a well-designed teaching program. (MP)

Four tasks which are frequently used to evaluate adolescent reasoning skill: (1) the pendulum task; (2) the ramp problem; (3) the cart experiment; and (4) the invisible magnetism experiment are analyzed to determine the Piagetian concepts that each measures. (CP)

Thirteen to fifteen year-old students from Denmark, Sweden, Italy, United States, Austria, Germany, and Great Britain were the subjects on this study of formal thought processes. Socioeconomic status, sex, and school organization provided additional categorization upon which the subjects were divided. Chi square analysis revealed some differences.…

Children's understanding of Euclidian space was investigated using three Piaget-type tasks to examine the ability of children to quantitatively locate a point in one, two, and three dimensions. Among the findings were that a disagreement exists between Piaget's data and the results of this study. (BT)

A pretest-posttest research design was used with 104 first-grade children to determine if discrimination and classifactory activities would affect transition from preoperational to concrete stages. Findings showed the experimental group exhibited significantly greater transition than did the control group. (CP)

This paper examines the cognitive process of concept development in preschool children, based on recent psychological research. Rather than attempting an exhaustive review of the more than 7000 articles written on children's concepts of categories, the paper highlights and illustrates four key themes that emerge from recent research: first,…

Investigated, within a Piagetian framework, was the degree of abstract preferences exhibited by five different grade levels of science students as they completed eighteen problem solving tasks. Three hundred twenty-nine randomly selected students from five grade levels, ranging from eighth grade to college seniors, were given the Shipley Test of…

After opening with a 13-page review of the literature, the document's main emphasis is on the three experiments included in this report. The specific rationale, procedures, and results of the three studies comprise the major portion of the document. The general purpose of Experiment 1 was to ascertain the effects of prior relevant subject matter…

Cites research findings to refute Piaget's contention of stages of cognitive development. Advocates continuous cognitive differentiation as a model. (CP)

Describes a program being conducted within the chemistry department of Xavier University, New Orleans, Louisiana, to improve the abstract reasoning abilities of freshmen science majors. The project is based upon the philosophy developed by Jean Piaget. (SL)

This document reorts on an educational research study involving 75 eighth-grade students to determine the effects of problem solving instruction on the ability of students to apply proportional reasoning in problem situations. Results suggest that changes in basic reasoning skills such as proportional reasoning are long term, highly dependent on…

The designs, results, and conclusions of several related research studies which examine the role of student preferences in problem-solving strategies are summarized. Emphasis is upon the relationship between an individual's stated preference and his or her ability to implement this preference and successfully solve a related science task. Students…