Describes a microbial bioassay, using molds as test organisms, that demonstrates toxicities of environmental pollutants. Includes laboratory methods and applications for the experiment. (MDH)

Describes what can be learned from animal dissections and asserts that models and videos cannot substitute for dissections. (PR)

Describes changes to a traditional study of population in yeast colonies. Changes to the procedures include: (1) only one culture per student team; (2) cultures are inoculated only once; and (3) the same tube is sampled daily. (DDR)

Presents some simple demonstrations that students can construct for themselves in class to learn the difference between diffusion and convection rates. Uses cabbage leaves and gelatin and focuses on diffusion in ungelified media, a quantitative diffusion estimate with hydroxyl ions, and a quantitative diffusion estimate with photons. (DDR)

Examines the development of a science center at a college, including the transformation of the physical facility and curricular changes. Provides a sketch of the facility and details about staffing the center. (DDR)

Explains a taxonomy of basic skills of science practicals that is used in the assessment of secondary science students. Details the assessment scheme which involves the evaluation of students through laboratory practical examinations, observational assessment, and written records of academic sessions. (DDR)

Safe science in schools depends on the premise that students and teachers share similar perceptions on issues of safety related to the general level of a student's maturity. Suggests that a divergence rather than a convergence of perception actually occurs. (DDR)

Explores the issue of physics laboratory work for engineering students and discusses the design, implementation, and evaluation of a laboratory program developed for first year engineering students. (DDR)

Presents two experiments that demonstrate phase changes. The first experiment explores phase changes of carbon dioxide using powdered dry ice sealed in a piece of clear plastic tubing. The second experiment demonstrates an equilibrium process in which a crystal grows in equilibrium with its saturated solution. (PVD)

Describes in detail a one-to-one writing conference between a graduate student tutor and a basic writer in a writing center. Raises questions of problem identification, the university context, learning disabilities, tutor training, professional development, and what constitutes good tutoring. (RS)

Recommends that teachers avoid cookbook-type exercises and predescribed protocols for laboratory work and instead engage students in research that can teach critical thinking, problem solving, and analytical skills. (DDR)

Offers a short history of how one writing center integrated technology into its practices. Relates how the center kept pace with changing times, while maintaining the integrity of its writing-center philosophy of student-directed pedagogy. Describes how its classroom presentations/workshops used technology to extend classroom conversations, to…

Examines how some links among various models of individual and family relationships begin to constitute a science of intimate relationships. Examples from a theory of personality socialization in the family are given to illustrate how links between theory and practice can be achieved through various methods. (Author/MKA)

Discusses the complexity of chemistry concepts and the identification of instructional barriers in terms of current learning theories. Recommends teaching to improve students' conceptual understanding. Contains 34 references. (WRM)

Examines the history of the white lab coat in scientific and medical practice and discusses the recognition of it as a cultural symbol. Contains 11 references. (WRM)