Contends that student success in introductory science courses at the college and university level depends on formal operational reasoning ability, size of working memory, and the degree of field independence. Reports the study findings related to cognitive predictor variables based on the testing of Venezuelan science majors (N=95). (ML)

Offers perspectives and specific ways of developing and nurturing critical and creative problem-solving skills with engineering students. Provides examples of exercises and approaches that aim in stimulating creativity and in providing understanding of course material. (ML)

Discusses the use of a strip log as a diagrammatic representation of the information available in a sequence of sedimentary rocks. Describes the design of the strip log (both symbolically and by visual/spatial patterns) and some of the possible interpretations that can be made using them. (TW)

Describes some of the contributions made by the field of paleontology to theories in geology and biology. Suggests that the two best examples of modern evolutionary paleontology relate to the theory of punctuated equilibria, and the possibility that mass extinctions may be cyclic. (TW)

Describes an introductory geology course for non-science majors that focuses on problem solving and group dynamics at The Ohio State University. Reviews its format and contents and compares it with other course options for non-science majors. Includes evaluative comments and provides a listing of group studies project topics. (ML)

Presents a simple, inexpensive and realistic model which allows introductory geology students to obtain subsurface information through a simulated drilling experience. Offers ideas on additional applications to a variety of geologic situations. (ML)

Discusses electron-loss spectroscopy and the experimentally observed excitation energies in terms of qualitative MO theory. Reviews information on photoelectron spectroscopy and electron transmission spectroscopy and their relation to the occupied and unoccupied orbital levels. Focuses on teaching applications. (ML)

Reports on a study designed to identify the major factors that lead students to anticipate a major in chemistry. Findings indicated that students' recognition of a high aptitude for science, the influence of a high school chemistry or science teacher, and laboratory experience contributed to their decision. (ML)

Summarizes five speeches from the Second National Conference of the Council on Undergraduate Research (CUR). Probes the role of undergraduate institutions in improving precollege training and structuring student research programs. Discusses some current problems of science and science education. Considers the history and activities of the CUR. (YP)

Presents some strategies that have been used to overcome problems in instructional areas of introductory biology programs. Focuses on maintaining an emphasis on inquiry, developing the process of science, the design of process laboratory activities, reducing cookbook laboratory orientation, and educating staff. (CW)

Describes a basic biotechnology investigation that includes restriction and ligation of plasmid DNA, transformation of bacteria and cloning of these bacterial cells. Discusses laboratory procedures and another activity in the identification of unknown plasmids by studying agarose gel electrophoresis photographs. (CW)

Identifies a technique using methylene blue and glucose to explain a genetically related enzyme shortage causing blue skin in humans. Offers a laser technique to study solubility of silver salts of chloride and chromate. Encourages the use of models and class participation in the study of chirality and enantiomers. (ML)

Describes several experiments that explore the methodology available to the forensic serologist for typing a human bloodstain in the ABH grouping system. Presents ABO blood group of wet blood, Lattes Crust test procedure, and the absorption-elution procedure. Uses outdated blood; equipment requirements are minimal. (ML)

Outlines a multistep project involving oxidation of cholesterol, isomerization of an enone, and reduction of delta-4-cholesten-3-one. Featured is the last stage in which the ring junction is set stereospecifically. Recommends two laboratory periods to complete the reaction. (ML)

Describes a physical organic experiment in thermodynamics and kinetics for undergraduate courses in organic chemistry, biochemistry, or physical chemistry. Details background information, solution preparations, equipment and methods, and the suggested experiments such as determination of general-base-catalytic coefficients and the Bronsted…