Discusses the development of an exercise physiology class offered via the Internet at Texas A&M University Corpus Christi. Topics include cognitive evaluations, laboratory assignments, student interactions, differences in examination scores with traditional lecture classes, post-class surveys, and the need for training educators and providing…

Examines the extent and nature of Year 10 students' model-based reasoning in a laboratory investigation that considered the influence of six factors on electrical resistance. Finds that spontaneous use of the electron-drift model of metals in explanations increased over the duration of the task, but the explanations were restricted to mainly…

Describes the physical and chemical structure of zeolites and presents a series of experiments demonstrating some of the properties of these chemicals, including investigations of the hardness of tap water and the water-softening capabilities of various laundry detergents. Contains 13 references. (WRM)

If science education is to be related as closely as possible to science, then Thought Experiments (TEs) must play an appropriate part. Presents a typology of TEs with examples drawn from the history of physics and addresses their various uses in bringing about students' conceptual development. Finds appropriate use of TEs is lacking in physics…

Reviews three projects that use a graphing calculator linked to a calculator-based laboratory device as a portable data-collection system for students in chemistry classes. Projects include Isolation, Purification and Quantification of Buckminsterfullerene from Woodstove Ashes; Determination of the Activation Energy Associated with the…

Describes a laboratory exercise that takes advantage of the abundant number of species of goldenrod galls that exist in the environment to explore a question concerning the behavior of the female gall-forming insects as they lay eggs on the goldenrod plant. (ZWH)

Presents information and data on an experiment designed to test whether different atmosphere compositions are affected by light and temperature during both cooling and heating. Although flawed, the experiment should help students appreciate the difficulties that researchers face when trying to find evidence of global warming. (PR)

Describes how to approach block scheduling of science classes. Discusses the planning process, specific activities that work well in longer science classes, and techniques for motivating students. (DDR)

Describes the implementation of problem-based learning (PBL) pedagogy in an undergraduate classroom. Briefly describes PBL philosophy and protocols, and gives guidance in choosing and integrating a PBL problem into the curriculum. Contains 13 references. (WRM)

Introduces the growing body of research on development of scientific reasoning skills, focusing on reasoning and problem-solving strategies used in experimentation and evidence evaluation. Maintains that current research examines strategy development and use in moderately complex domains to examine conditions under which subjects' theories…

Argues that K-12 students in the United States will continue to lack essential science knowledge until teachers are more knowledgeable about science, science curricula are restructured, and more varied science books are available. Highlights print and Web resources dealing with earthquakes and volcanoes, the heart, science experiments at home, and…

This article describes an alternative way of testing--a performance assessment--that is different both in process and goals from typical tests, but closer to what teachers believe assessment should be. Teachers who have helped to create, refine, and use this new generation of tests find them valuable because they measure the skills and concepts…

The four main forms of carbon--diamond, graphite, buckyballs, and carbon nanotubes (CNTs)--are an excellent vehicle for teaching fundamental principles of chemical bonding, material structure, and properties. Carbon atoms form a variety of structures that are intrinsically connected to the properties they exhibit. Educators can take advantage of…

This work describes outcomes of a research-driven advanced microbiology laboratory and literature research course intended to enhance undergraduate preparation for and contributions to original research. The laboratory section was designed to teach fundamental biochemistry and molecular biology techniques in the context of an original research…

Undergraduate degree programs in the biosciences almost always include elements of biochemistry. In the United Kingdom, biosciences programs often have optional pathways to accommodate students of diverse interests. These programs rarely require students to demonstrate any school-level chemistry knowledge, and many students find biochemistry…