Examines students' problem solving performance on linear and logarithmic estimation tasks using a microcomputer. Results are discussed in terms of performance data and strategy used. Students were able to estimate faster and more efficiently for the linear estimation task but experienced difficulty on a logarithmic scale. Discusses reasons for the…

Discusses a study which focused on students' actual programming behavior. Descriptive data revealed that the high school students spent little time in planning their programs or writing their code. Their debugging behavior was characterized as a trial and error strategy. (ML)

Reports on a study that investigated the effects of various instructional practices on programming proficiency focusing on characteristics of Pascal classes. States that instructional practices involve extensive on-line access, explicit instruction, and extensive feedback. (ML)

Examines (1) how students evaluate information obtained in the science laboratory; (2) the effects of use of microcomputer-based laboratory; and, (3) the effects of explicit instruction on critical evaluation skills. Discusses results in terms of students' propensity to accept incorrect graphs and in terms of the effect of the enhanced instruction…

Describes a study in which middle school/junior high school students were exposed to women science career role models as a part of their science instruction. Results indicated that the student's attitudes toward scientists and women in science were positively affected. (TW)

Discusses the inclusion of socio-scientific issues in science education from the standpoint of social cognition. Describes a study in which adolescents who had successfully completed both high school chemistry and biology were interviewed. Data suggest that their dominant domains of reasoning were in the area of social cognition. (TW)

Discusses the inclusion of socio-scientific issues in science education. Describes a study in which adolescents who had successfully completed both high school chemistry and biology were interviewed to determine the extent to which they used their knowledge of the physical world, via nonsocial cognition, when analyzing such issues. (TW)

Describes a secondary analysis of a national assessment of educational progress in science which was conducted in 1981-1982 with students of age nine. Suggests that elementary school students' achievement and attitude are influenced jointly by a number of factors rather than by one or two dominant ones. (TW)

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)

Examines the hypothesis that there are preliminary stages in problem solving that are often neglected in teaching chemistry. Discusses correlations calculated between the student's ability to handle disembedding and cognitive restructuring tasks in the spatial domain and ability to solve chemistry problems. (TW)

Uses two studies to examine developmental and task effects in estimation problems. Results are discussed in terms of student and task characteristics and the implications of such variables on information processing model of learning. Implications for science teaching, learning problem diagnostics, and science curricula are also discussed. (TW)

Describes an investigation of the strategies used by 47 high school students in solving volumetric analysis problems in chemistry. Reports that students in the high ability group mainly used the "formula" approach, while those in the low ability group tended to use the "proportional" approach to problem solving. (TW)

Discusses the benefits of five short science courses offered to middle school age children and their parents. Reports on the participants' reactions, two to three years after taking the courses, to the course experiences, the influence of the courses on learning behavior, and the relationship between the parents and their children. (TW)

Discusses the value of studying errors made by students in the process of learning science. Addresses 20 research questions dealing with student learning errors. Attempts to characterize errors made by students and clarify some terms used in error research. (TW)

Describes a study designed to explore sources of influence on the judgements made by science teachers related to school characteristics, classroom features, and properties of a science curriculum. Results suggest that teachers' judgments center around concern for student ability and interest, teaching methods, and school spirit and morale. (TW)