Describes modifications of a Nuffield experiment demonstrating oxygen transport by blood since the current experiment more often than not produces unsatisfactory results. Includes experimental modification, instructional strategy, assembly of equipment, and a brief discussion. (JN)

Factor analysis was used to investigate constructs underlying performance in a biology examination supporting an hypothesis suggesting that the constructs were related to knowledge (rather than other levels of Bloom's taxonomy) of topics. Indicates that the method provides a means of identifying what examination items test. (Author/JN)

Describes an approach to titration curves which eliminates the choice of approximations and the algebraic complexity of accurately solving for hydrogen ion concentration. This technique regards moles of titrant as the dependent variable. (CS)

Presents the uses of pocket calculators, programmable calculators, and microcomputers in teaching of statistical physics in unit 9 of the Nuffield advanced physics course. (SK)

Focuses on the sigmoid growth curve as a biological principle that can be applied to the study of human behavior. (CS)

The science achievement scores of a large sample of 13-year-olds were regressed to test a psychological theory of educational productivity, and to explore the usefulness of the National Assessment of Educational Progress data for secondary analysis for policy purposes. (Author/GK)

Presents brief biographical sketches and achievements of the 1982 outstanding earth science teachers from each National Association of Geology Teachers region. Also includes list of state winners. (JN)

Sources of misconceptions and learning difficulties were identified by interviewing academically sound A-level students (N=10) who were having difficulties with genetics. Indicates misconceptions were related to nature of concepts used in genetics, such as frequent representation of meiosis by fixed inanimate stage diagrams and to instructional…

Describes an imaginary organism used to illustrate principles of genetics. The organism is easily drawn and suited to simple printing techniques, having been used to show independent segregation, partial dominance, linkage (sex chromosomes and autosomes), and in inheritance of autosomal gene lethal in the homozygous state. Additional exercises are…

The Consumer Product Safety Commission will recommend an information network to inform students and teachers of current toxicity evaluations of chemicals and of possible use of less hazardous substitutes. Lists names of 33 suspected carcinogens and 11 suspected teratogens. (SK)

Inquiry and scientific inquiry are distinguished in which various connotations associated with the term "inquiry method" are reviewed. Basic competencies to be acquired by students before scientific inquiry can be accomplished are listed; reasons for these prerequisites are given. (CS)

Considers various aspects of bee stings including the physical mechanism of the venom apparatus in the bee, categorization of physiological responses of nonprotected individuals to bee sting, chemical composition of bee venom and the mechanisms of venom action, and areas of interest in the synthesis of bee venom. (CS)

Provides instructions for building an inexpensive apparatus that measures the thrust of a model rocket engine as a function of time. (CS)

The extent to which teachers controlled the learning environment was negatively associated with motivation. Significant positive interactions were found between science achievement level and utility of science content and classes for early adolescents. For older adolescents, significant interaction was found between achievement and class morale.…

Summarizes results of a questionnaire sent to teachers requesting their reactions to the A-level physics course syllabus. Includes reactions to examinations and sections on electronics and the structure of matter. (SK)