Investigated were children's reactions when allowed to choose their own apparatus and perform experiments with appropriate directions available. Few students invented their own experiments; most followed the available printed instructions. (SL)

Reports on a study in which clinical interviews were conducted with three elementary school children to determine the extent to which they held naive misconceptions about important biological topics, and to determine agewise trends in the development of biological knowledge. (TW)

Examines the effect of verbalization on the formation and retention of mental images in children in kindergarten, first, and fifth grades. Reports no self-generated verbalization effect with gender or ability level and no retention effect. (Author)

Discusses a study which explored the possible value of the history of science to understanding student misconceptions. Focused on photosynthesis and examined relationships between students' conceptual difficulties and the transformation of concepts through time. Student responses suggest that the history of science can be used to anticipate…

Reports on a study designed to compare the effects of two instructional treatments in which the experimental treatment emphasized self-management, goal clarification, and individualized course expectations. An increase in science locus of control was found to be significant for the experimental group. (TW)

This study compared the classroom environments as perceived by fourth-grade, seventh-grade and high school boys and girls in classes taught by males and females to determine if any perceptual differences existed. The analyses showed no differences for fourth-grade students, one for seventh-grade students, and three for high school students.…

Identifies two stages in research on scientific literacy; a composite saturation stage in which definitions covered all objects of science education, and a stage when researchers focused on small manageable portions of scientific literacy. Describes formal, nonformal, and informal science teaching. (TW)

Described is a cost-effectiveness analysis applied to the question of the probable impact of 69 actions advocated for improving science education. The major objectives and the 11 categories of interventions are discussed in regard to effective schools and implementing educational change. (KR)

Reports the results of an in-depth examination of middle school children's graphing skills and misconceptions. Also discusses a study in which students learned graphing skills through microcomputer-based laboratory (MBL). (ML)

Calls for differentiating between three kinds of studies of students' conceptions in science, namely descriptive studies, explanatory studies, and studies attempting to foster conceptual change. Cites the literature about student perceptions and science instruction. (TW)

Reports on a study into the relative importance of the four goal clusters of Project Synthesis as perceived by members of service clubs and community groups. Results indicate that although the importance of science for further studying of science remained constant from 1976-1986, significant increases occurred in the importance of science in…

Reviews the neural modeling principles of learning, perception, cognition, and motor control, discusses their applications to sensory-motor problem solving, and explores possible relationships between that pattern of problem solving and aspects of higher order formal operational problem solving. Cites implications for science education. (ML)

Examines 11 elementary science texts in terms of conceptual structure and reasoning demands using concept maps. Reports that (1) the conceptual structures vary widely across texts; (2) most of the structures are well defined; and (3) the reasoning demands are above the developmental capabilities of most of primary-level children. (Author/YP)

Examines some of the problems in interpreting data from attitude measures when the dimensionality of the instrument and sources of heterogeneity in the population are ignored. Illustrates this point by describing the development of an instrument designed to measure children's attitude toward science-related activities. (TW)

Results of 11 studies of classroom practices used with activity-based elementary science programs were combined quantitatively using a composite category system. One finding reported is that teachers trained in program use spent less time talking and more on activities than untrained teachers using the programs. (Author/JM)