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…

This report presents the results of an investigation of the Science Curriculum Improvement Study (SCIS) program and the effects of the Materials Objects unit on first-grade students and teachers. The contents of the report include purposes and limitations of the study, discussion of the instruments, observers, reliability of the Q sort, the…

Describes the three phases of the development of the pilot project on science concepts learning which was designed to be implemented nationally by the participating countries of the Southeast Asian Ministers of Education Organization (SEAMEO). (HM)