In Fall 1975, PMDC investigators administered a battery of tests to 185 first graders and 152 second graders to assess children's progress in acquiring mathematical concepts and skills during the beginning school years. Two tests were constructed by PMDC and this document reports item statistics and results from these tests; copies of the tests…

In this study, free play with toys having unambiguous functions was examined to test the hypothesis that a basic cognitive metamorphosis is associated with the new competences displayed in children at about 12 months. Functional play was observed in 64 children at 9 1/2, 11 1/2, 13 1/2, and 15 1/2 months of age. Six sets of toys with 36…

Two experiments involving 40 developmentally disabled children (7 to 13 years old) and 32 normal school children (from grades 2-5) were designed to produce a cognitive assessment tool, based on musical conservation tasks, which would be particularly useful with visually handicapped children. Implications from the research were that these tasks…

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…

This paper summarizes what the author considers to be the best advice available at this time for applying Piaget's theory in the chemistry classroom to understand the difficulties that some students have. The identification of students who are operating at the concrete operational or formal operational level is discussed along with the actual…

Thirty-four fourth-grade students participated in a study of the way in which children acquire frameworks used to recall and encode stories. The study tested the hypotheses that children have a consistent preference for a story structure node in which they identify narrative events as comprising plausible story themes, that the framework generated…

Described are procedures used to assess reasoning in congenitally blind students. It is explained that the Piagetian Battery of Reasoning Assessments for concrete and formal or abstract thought measures the following basic abilities: reversability of thought, classifacatory thought, spatial orientation, and mental imagery. (CL)

This paper outlines a toddler day care curriculum, based on Piaget's developmental theory, which is suitable for implementation at a laboratory preschool or community college child care center. Implications of Piaget's theory for the curriculum of a toddler program are discussed. The specific program developed is described in terms of guidelines…

This paper discusses research on age related aspects of children's processing and comprehension of the narrative content of family oriented television programs. In one study, the temporal integration necessary to make inferences about audiovisually presented information was examined in 254 second, fifth and eighth grade children. Subjects were…

Kindergarten through third grade children's responses to concrete and verbal class-inclusion problems were compared under several presentation formats. Children initially had more difficulty with the verbal task which was highly specific in format than with the concrete tasks. These differences, however, were easily eliminated by an extensive…

American college students are highly diverse with respect to formal intellectual development. This diversity can present educators with a difficult challenge, especially in fields that depend heavily on mathematics. The Cognitive Development Project at the University of Massachusetts is an attempt to foster the development of formal operational…

This paper examines the interrelationship between children's acquisition and use of symbols and the development of imaginative play. The paper focuses on the use of pretend play as an expression of the child's capacity for symbolic functioning and as an index of intellectual development. The first section of the paper reviews developmental changes…

This study attempted to determine whether attendance at a traditional preschool resulted in significant cognitive gains for young children over a 3-year period. The experimental group consisted of 59 children at four preschools. Each was matched with a nonattender on such variables as age, sex, intelligence, and family characteristics. The mean…

This study was designed to replicate and extend the work of Steffe on the effect of using different set names as variables in addition problem statements. The behavior of both first- and second-grade students was studied and the usefulness of visual aids in solving addition problems was also investigated. One-hundred twenty first- and second-grade…

The concepts of front, back, and side may be easily understood in relation to an intrinsically fronted item, but with a nonfronted object they depend on situational or psychological cues. A study investigated a child's awareness of the front, back, and side of his own body and of fronted and nonfronted objects. Researchers hypothesized that a…