Sylwester says education must begin relying more on biology than social and behavioral science. All brain systems move from a slow, awkward functional level to a fast, efficient level. Contributions of metacognition, self-regulation, emotions, reflective and reflexive responses, comparison, and classification to cognitive development are…

Discusses the advantages and disadvantages of using laptop computers rather than desktop computers in science classroom and laboratory instruction. Finds that while laptops provide greater flexibility, they come at a greater expense. Lists the uses of laptops in a departmental curriculum. (Author/WRM)

Describes a freshman biology laboratory project that uses the polymerase chain reaction to introduce students to the interrelationship between biology and chemistry. Students must develop their own experimental protocol, perform calculations introduced in freshman classes, and evaluate group dynamics. (Author/WRM)

Presents an active-learning technique in which students design their studies that was found to be successful in an animal behavior laboratory course. Divides the laboratory course into three components: (1) structured and technique-oriented exercises; (2) open-ended and student-designed investigations; and (3) independent projects. Explains…

Describes an activity in which high school students did demonstrations for special education and elementary school students. Explains the difficulties that students have in their presentations and the benefits they receive. Lists elements of both the physical science demonstration set and the biology demonstration set. (YDS)

Presents the results of a cross-age study of 7- to 15-year-old children on their thinking about vertebrate and invertebrate animals. Suggests experiences that could be included in the school science curriculum and argues for more classroom work relating structure with function in order to address students' conceptual difficulties. (Contains 18…

Indicates the presence of complex structural, behavioral, and functional relations to understanding. Reports on a design experiment in which 6th grade children learned about the human respiratory system by designing artificial lungs and building partial working models. Makes suggestions for successful learning from design activities. (Contains 44…

Discusses how biologists use evolutionary theory and provides examples of how evolutionary biologists test hypotheses on specific modes of selection and evolution. Presents an example of the successful predictive power of one evolutionary hypothesis. Contains 38 references. (DDR)

Since many of the important energy-transferring pathways involve synthesis or degradation of biological macromolecules, observations of the enzymes responsible for starch breakdown provide a useful case study. Provides a short, one-step assay for the enzymes amylase and amyloglucosidase. Topics covered include goals, preparation, assay procedure,…

Describes a project based on the collaboration of scientists, science educators, graduate and undergraduate students, and master teachers for the improvement of teaching introductory science courses. Uses action-based research teams (ABRTs) as the teaching tool to change the curriculum, which provides a mechanism for the implementation of changes…

Compared hypermedia and traditional instruction in their contribution to declarative, procedural, and conditional knowledge and retention using a pretest-posttest design. Data from ninth-grade biology students showed no significant difference between the groups in acquisition of declarative, conditional, and procedural knowledge. However, the…

Introduces an activity on arthropod genetics that involves phenotype and genotype identification of the creature and the construction process. Includes a list of required materials and directions to build a model arthropod. (YDS)

Reviews the following software: "Pizza to Go,""A World of Animals,""First Start Science,""MediClip,""Zurk's Learning Safari,""Paul Parkranger," and "Forces and Motion." (PR)

Presents background information on the method used by Hipparchus to determine the distance between the earth and the moon. Describes student activities that employ Hipparchus's Method and Aristarchus's Method for determining the relative distance of the sun and the moon from the earth and Eratosthenes's Method for finding the circumference of the…

Explains how to transfer a relevant written article into a learning activity involving active role play. Enables the development of critical thinking skills and helps to humanize science by highlighting its importance in everyday life. (DDR)