Describes a study that investigated the role of a design context for developing children's understanding of science as the construction and revision of models. Results indicate that as early as the first grade, children's model-evaluation skills may be quite amenable to development. (DDR)

Presents a study that analyzes an extensive database consisting of the written and oral discourse of students (N=23) as they described their thoughts on ontology, epistemology, and sociology of scientific knowledge. Contains 51 references. (DDR)

Reports a study of the quality and extent of understanding of certain well-known theoretical concepts which are held by prospective teachers (N=173) of chemistry in Yemen. Results indicate that teacher understanding ranges from a partial understanding with a specific misconception to no understanding. Contains 25 references. (DDR)

Describes a study that explores the instructional influence of presenting pictures at the molecular level when introducing chemistry concepts and solving chemistry problems. Explores the effect of the pictures on students' conceptions and problem-solving abilities. Contains 59 references. (DDR)

Discusses the notion that scientific knowledge is not dependable and that knowledge is no longer valued as a part of science. Points out that this has led to approaches that aim to teach scientific methods or problem-solving skills rather than scientific knowledge. Contains 19 references. (DDR)

Addresses the question of what bearing the nature of educational theories has on their application to practice and focuses on the application of normative goal-directed theories of science education. Contains 40 references. (DDR)

In response to an article in the same issue by Norris and Kvernbekk, argues that the theory of Driver and associates, elaborated upon in the three articles which form the basis for their analysis, is not a normative goal-directed theory. (DDR)

Provides details of the Gender and Ethnic Equity in Science Education (GEESE) program that gives preservice science teachers the opportunity to use clinical observations and reflection as vehicles for discovering the disparate school experiences of the diverse students in their science classrooms. Contains 71 references. (DDR)

Describes a study designed to provide insight into the strengths and limitations of using groupwork to promote excellence and equity in science education. Argues that students need more guidance in how to talk and do science. Contains 40 references. (DDR)

Reports on a study that used high school students to test the assumptions of the multiple hypothesis theory posited by Lawson to explain the essence of scientific reasoning. Contains 19 references. (DDR)

Presents three studies that demonstrate the efficiency of the kinesthetic conflict in promoting the understanding of three scientific concepts among children aged 5-12. Results support Piaget's theory which determines the origins of scientific thinking. Contains 26 references. (DDR)

Argues that assessment should be an integral component of the science curriculum and that assessment should assist students and teachers in accomplishing their goals. Points out the failures of the process-product models of school reform. (DDR)

Explores how third- and fourth-grade children (N=24) make sense of a scientific procedure introduced to them which they had used before in their own experimental inquires. Findings provide a picture of the complexity of understandings in this simple process. Contains 42 references. (DDR)

Explores children's understandings of insect life cycles through pre- and postinstructional interviews, analysis of children's journal entries, and talk that occurred throughout the instructional unit. Contains 38 references. (DDR)

Reports on a study that assesses the effects of the application of visual information-processing theory to the design of a laboratory manual for chemistry. Focuses on the effects on content learning, practical skill mastery, and attitudes of university students enrolled in a general chemistry course. Contains 41 references. (DDR)