A sex-related difference, favoring boys, was found on initial performance of two samples (one British, one American) of 10- and 11-year-old children on tasks involving volume and density. After classroom instruction that included opportunities for interaction with appropriate materials, both sexes performed at higher levels but differences…

Describes an analysis of test items used to measure the science process skills of 11-year-olds in Great Britain. Concludes that the level of cognitive demand was a reliable predictor of the difficulty of an item. (TW)

This study was concerned with student transition from concrete to formal cognitive functioning. Results of training 32 fifth-grade and 32 seventh-grade students indicated that instruction can effect the desired transition of ability to isolate and control variables. (SL)

Explored Morine and Morine's ("Discovery: A Challenge to Teachers") assumptions regarding age and cognitive development of students (N=174) successfully utilizing structured inductive and semi-deductive inquiry strategies. One finding noted is that age has made a significant difference on achievement for both strategies. Implications for…

Elementary school children were interviewed about how gears move on a gearboard and how they work in commonplace machines. Children's reasoning became more general, formal, and mathematical as problem complexity increased, suggesting that mathematical forms of reason may develop when they provide a clear advantage over simple causal…

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)

Explored were classification criteria selected by primary children in free classification situations as a function of grade levels, socioeconomic background, and some characteristics of the classification tasks. Conclusions indicate a strong preference to classify items by their form. Student differences in free and guided classifications are…

This study focuses on the transmission stage of curriculum implementation, specifically at the interaction level of curriculum developer and teacher. Level of agreement regarding objectives and priorities between evaluators, teachers, and developers was determined for a unit on "colors" developed for primary school children and partially…

Studied the intellectual differences between third and fourth grade Filipino children who had studied Science--A Process Approach (SAPA) and others who had studied a traditional curriculum. The SAPA children performed significantly better than the control group on a test of observing, comparing, and classifying simple geometric objects. (MLH)

Examines the effect of relevant group instruction on various children's developmental stages regarding the conception of space. (Author/GA)

Compares the linguistic performance of the students in three grades exhibiting different levels of performance on five selected Piaget-type tasks, and identifies those tasks which differentiated significantly between the cognitive levels and the linguistic performance of the subjects. (Author/GA)

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)

Investigated level of concept attainment of selected energy concepts for possible inclusion in the Nigerian Primary Science Project. Subjects (N=450) were taught energy concepts at descriptive, comparative, and quantitative levels. Suggests the need to describe these levels for particular grades and match curriculum with students' thinking…

Studied classroom behaviors and conservation ability of elementary school science students taught by either Student-Structured Learning in Science (SSLS) or Teacher-Structured Learning in Science (TSLS). Reports on how behavior of conservers and nonconservers differs in SSLS and TSLS with respect to observing, following directions, and inventing…

Investigates the visual resemblance sorting cognitive abilities of 120 Hawaiian and 100 Malaysian first-grade children using five booklets, each containing seven test drawings. Results revealed that the performance of the two groups was about the same. The difference in scores for four of the five booklets was not significant. (HM)