Examined the interrelationships among three major components of classroom teaching: subject matter content knowledge, classroom management, and instructional practices. Observations of a middle school science teacher found that the teacher's limited knowledge of science content and strict classroom order resulted in heavy dependence on the…

Analyzed the relationship between general coding orientation and specific characteristics associated with the family (social class, race, gender) and the school (pedagogic practice and science achievement) of (n=80) socially differentiated elementary school children. Found that there is a mutual influence of family and school factors on students'…

Outlines arguments for action research approaches to the implementation of STS education. Presents six teachers' initial views and changing perceptions throughout the duration of an action research project in terms of four categories: nature of STS education, development of curriculum materials, personal/professional development, and collaborative…

Interviews of and questionnaires given to (n=299) 14- and 15-year-old students in England and Spain on their understanding of combustion and on the teaching and learning styles used with students found that the extensive use of practical work in English schools had only a marginal effect on their understanding of combustion. Includes…

Describes the process of analysis for determining a teacher's conception of teaching science using interviews. Representations of a teacher's conception of teaching science include a grid for analyzing different themes in a teacher's conception, a brief summary of the themes, and a longer written interpretive summary. (23 references) (Author)

A Particulate Nature of Matter Evaluation Tests was used to explore the effect of computer animations depicting the particulate nature of matter on (n=400) college students' mental models and comprehension of chemical phenomena. Treatment groups received significantly higher conceptual understanding scores than did the control group. (30…

Details two studies: (1) Study A describes a close replication of a Bishop and Anderson study (1990) using the same conceptual-change teaching module to teach a unit on evolution to nonmajor biology students; and (2) Study B used high school students, and the instruction was based on the inquiry approach to science. (28 references) (Author)

Examines congruence between science content structure of instructional materials and students' structural representations before and after science instruction. Eighth-grade science students (N=30) were given concept-structuring tasks before and after studying instructional materials to assess changes in student structural representations.…

The quantitative relationship of measured ability to measured science learning was synthesized from reported correlations in 34 studies on grade 6-12 students over a 16 year period. Findings indicate a stable central tendency and deviation of correlations across ability and cognitive outcome categories and across several study variables.…

Evaluated is the Longeot test, a paper and pencil test designed to measure various aspects of formal and concrete operational thought. Information from over 500 subjects (ages 17 to 20) indicated the test to be reliable and classifications from it correlated with classifications mode using Piagetian tasks. (DS)

Investigates effects of an independent variable (grade) on three dependent variables (membership, partial association, and generalization) describing preferential styles of thinking in 1635 pupils, measured by a 16 concept word test. (DS)

Subjects (N=41) were randomly assigned to one of two groups defined by the teacher's clarity in a genetics lesson: low-clarity versus high-clarity. Subjects rated lesson presentation and completed a test on content. The high-clarity group perceived lessons as significantly clearer and achieved more than the low-clarity group. (DS)

Describes the development of a systematic instrument for assessing the impact of an environmental science course on students' behavior outside school. Students in an inquiry-oriented experimental curriculum significantly increased their leisure time activities in environmental science over students in traditional classrooms. (DS)

Describes a set of Science Reasoning Tasks which are valid and reliable for assessing the ability of children to use concrete and formal reasoning strategies and can be used by science teachers without professional training in Piagetian studies. Thirty pupils can be tested on each task in about 50 minutes. (Author/DS)