Explores the use of free sort methodology to compare BSCS student and teacher understanding of the BSCS conceptual framework. Results support the idea that teachers who have better understanding of the BSCS conceptual framework, as shown by their sort patterns, may impart this understanding more effectively to students. (CS)

Describes the reordering of a ninth-grade physics course that aimed at making core concepts clear to the students while at the same time developing students' skills and depth of understanding. Discusses its benefits and associated problems. (JRH)

Reports results supporting the theoretical rationale that there are certain cognitive skills, including data interpretation, identification of assumptions and hypotheses, and controlling of variables, that appear to be necessary for successful understanding of the heterotroph hypothesis, as presented in the BSCS Blue Version. Implications for…

The research reported in this paper concerns the design of instructional materials that represent the content structure of a science discipline and the development of methods of probing and representing the knowledge structure in a student's memory. The science discipline selected for the study was geology. Specifically, the conceptual structures…

Results are presented of a study determining the effects of type of junior high school science program on science content achievement and science process achievement in the presence of reading achievement, mathematics achievement, and sex. Two groups of ninth-grade students (N=50) were randomly selected to participate in either an ISCS program or…