This paper includes a general account of the biology of the brine shrimp, instructions on how the organism may be cultured, the results of some experiments on the ecology and population biology of the species, and some suggestions for further studies. (Author/CW)

Presented is an exercise for high school students which illustrates the principle and practice of measuring energy flow through a community. Included are worksheets, instructions, a flow diagram, and a list of ecosystem parameters. (Author/CW)

This was an experiment to test the extended discretion laboratory approach versus a guided-inquiry approach for teaching biology in a university setting. Among three criterion variables (examination, reports, and quizzes), only the laboratory report scores showed differences between groups and group-by-instructor interaction. (Author/YP)

Describes an approach to devising realistic laboratory projects to enhance research training for undergraduates. Students replicate all or part of an experiment from a core article that provides the framework for the research project in terms of scope, method, and reporting. Advantages and limitations of the method are discussed. (GEA)

Outlines a graduate course, "Microbial Systems Analysis," for students in chemical and environmental engineering or engineering mechanics, as well as microbiology, ecology and biotechnology. Describes the objectives, structure and laboratory experiments for the course. (YP)

Discussed is the historic development of Snell's law and derivation of the law without using mathematical expressions. Describes laboratory procedures using diagrams. (YP)

Summarizes research on inquiry and investigative strategies for teaching laboratory science. Concludes that meaningful laboratory instruction is distinguished by: student engagement in science inquiry processes, student manipulation of experimental materials, and the experiential teaching of specific scientific concepts. (RT)

Describes exercises in which tabs from aluminum beverage cans are used to introduce principles of classification, biostratigraphy, and evolution. Provides diagrams which represent dorsal and ventral views of species and a table which graphs units of time in relation to species duration. (RT)

Described is a laboratory study designed to demonstrate loss of vegetation, alterations in the species composition of a community, and the impoverishment of a community with respect to desirable food plant species when herbivore feeding exceeds the rate of vegetation regrowth. The laboratory uses a classroom aquarium. (CW)

Discusses procedures for teaching basic soil morphological concepts using soil cores collected along a toposequence. Describes materials and methods for collecting, laboratory use of cores, and student evaluation results. Shows a table of criteria used to describe soils for profile descriptions. (RT)

Access to postsecondary science education for students with disabilities was examined. A comparison of recruiting materials from further colleges, polytechnics, and universities indicated that institutions of higher education provided more positive information. A survey of 26 science departments revealed that there is little staff training or…

Explores a way of analyzing laboratory activities that can help middle and high school science teachers to match their instructional goals with one of three appropriate types of activities: confirmation, generalization, or resolution. Examples and guiding principles for each kind of activity are given. (Contains 23 references.) (MDH)

Two experiments investigated whether preschoolers attend to appearance instead of taxonomic relations in sorting sets of objects with conflicting appearances and taxonomic relations. Found that training and instructions have a significant effect on children's preference for sorting according to taxonomic relations or appearance, and that both…

Uses Michele Le Doeuff's theories about reverie, reflection, and migrant rationality to rethink the crossroads in the writing center between individual desires and disciplinary ideals. Examines the situations of four graduate students who find themselves contained or restricted by the limitations of discourse in their disciplines. Discusses how…

Describes a variety of possible uses of computers in second- language instruction that go beyond traditional drill-and-practice programs. (Author/JL)