Reports results of the meta-analysis of 130 research studies on effects of instructional systems used in science teaching. Studies coded gave rise to 341 effect sizes. Systems examined included audio-tutorial, computer-linked, individualized, and media-based instructional systems, personalized system of instruction, mastery learning, self-directed…

Compared formal reasoning responses of seventh-and eighth-grade students on three tests of formal reasoning. The three tests differ only in the mode of equipment presentation on identical test items and problems. Tests included three-dimension demonstration (Lawson), two-dimension showing drawings of materials used in three-dimensional test, and…

Described are some of the factors that have influenced the introduction of instructional change into Black South African classrooms. The Science Education Project of the 1980s, teacher uncertainty, pupil expectations, the epistemology of science education, resources, and the image of innovation are discussed. (CW)

Compared are two approaches to inservice geology instruction for elementary and secondary school earth science teachers. The benefits of the combination of lecture, laboratory, and field work are emphasized. (CW)

Investigates teaching propositional logic (hypothesis testing and scientific reasoning) to preservice teachers enrolled in an elementary science method course (n=48). Results indicate that students scored higher on a posttest of the Propositional Logic Test than on the pretest. Authors conclude that even a brief intervention in logic can improve…

Investigated how English preservice elementary teachers built upon their repertoire of knowledge for teaching science, tracing their development of subject knowledge and pedagogical knowledge in science and their views about the knowledge base required. Interview data indicated that participants drew upon subject knowledge in combination with…

A common maxim in the educational profession is that one teaches the way one is taught. Indications are that preservice teachers' beliefs, attitudes, and practices may be linked to previous experiences. Calderhead & Robson (1991) underscored this concern by asserting that teachers use good teachers as models for developing their own images as…

Information and Communications Technology (ICT) plays a dominant role in enhancing teaching and learning. Similar advances have been made in the use of multimedia in the classroom. These advances are coupled with newer developmental tools and techniques. This paper examines the design and development of a simulation on water conservation. Science…

The purpose of a study was to explore the link between conceptual understanding, free exploration of hands-on science center exhibits, and Piagetian cognitive developmental levels. In this primarily qualitative study, which is based upon interview and observational data, patterns in children's behavior relating to specific hands-on science center…

A 4-year program of naturalistic research on science teaching and learning was conducted in Australia. This program comprised a project entitled Teaching and Learning Science in Schools (TLSS), which ran from 1987-89, and a year of follow-up studies in which some of the major findings from the project were explored further. Participants included 5…

In order to take into account in a more productive, effective manner children's prior science knowledge in the development of science curricula and in the teaching of science, it is important "to know how to explore it, to know about its nature, and to consider the various ways it may, or may not be modified" (Gilbert, Osborne, and Fensham, 1982).…

The first (exploratory) phase of the Learning in Science Project focused on science teaching/learning in the Form 1 to 4 level (ages 10 to 14) and sought to identify problems and difficulties in several areas. Provided in this paper are comments obtained during structured/unstructured interviews (from students, ex-students, teachers, headmasters,…

The Committee on Indicators of Precollege Science and Mathematics Education was established by the National Research Council to develop indicators of the condition of science and mathematics education in the nation's schools. In this report, the committee makes recommendations for improved ways of monitoring the condition of education in these…

This study is part of a larger study of teachers' use of curriculum materials in planning and teaching fifth-grade science. The study focused on one of nine teachers observed teaching "Communities," an activity-based unit from the SCIIS science program (a revision of the original Science Curriculum Improvement Study).…

This publication presents selected papers that address certain questions that are being investigated by Bank Street College's Center for Children and Technology (CCT). CCT's researchers are working to help define new research inquiries and to document students' and teachers' uses and understandings of educational technologies. Included in this…