Describes an automatic pipette washer that is functional, inexpensive, and easy to construct from locally available parts. (KHR)

Describes an experiment that introduces students to the different types of UV rays and their effects on living things by using appropriate teaching materials and equipment. Demonstrates the effects of exposure to UV-B (fluorescent) and UV-C (germicidal) lamps by using bananas, duckweed, and the fruit fly. (Contains 14 references.) (Author/YDS)

The students in an Arizona elementary school writing lab form learning groups that alternate between paper and pencil activities directed writing techniques, and word processing and keyboarding skills. After students have progressed through brainstorming, rough draft, revision, and editing processes, their work is published by the Polar Press.…

The European Patent Convention has informed Harvard University that its application for a patent on a genetically engineered mouse may be refused. The application was the first to obtain patent protection across most of Europe for a transgenic animal, one which has been implanted with genes from another animal. (MSE)

Argues that encouraging a "dialogue of one" (in which students internalize their reading selves in the act of revision) contributes to reuniting students' academic and cultural selves. Contends that students can learn the language appropriate to the literate community by recognizing that their writing is subject to critical questioning…

Argues that a writing conference dialogue is as much about the psychosocial relations between the participants, and between them and the larger institution, as it is about the particular writing problem they are negotiating. Sketches four features of family systems theory that best illuminate writing conference dialogue. (RS)

The use of the thiosulfate ion in teaching the concepts of gas formation, precipitate formation, complex formation, acid-base interaction, redox interaction, time evolution of chemical processes, catalysis, and stoichiometry is discussed. Several demonstrations and activities are detailed. (CW)

Two promising new technological tools for science education are described: microcomputer-based laboratories and science telecommunications networks. Explained are the benefits of these tools for students with learning disabilities (including emphasis on nonverbal images and improvements in student focus and communication skills) and guidelines…

Outlines a laboratory activity which takes place at the zoo and helps make some of the important aspects of evolution more concrete. Includes the principles of adaptation, variation within a species, types of evolution, and predicting future evolutionary trends. Provides a student worksheet. (RT)

Describes a model for generating solution features, or karren, on gypsum blocks within 24-48 hours in order to illustrate terrain-forming processes. This method for replicating landforms provides hands-on experience for students, and can be varied to demonstrate a number of principles. (LS)

The authors describe their observations, as administrators of the Personal Adult Learning Lab at the University of Georgia, about the role of educational technology in adult self-directed learning and the adult learner's reaction to technology. The ways in which the lab is using computer-assisted instruction and interactive video technology are…

Offers an overview of various online writing labs across the United States, showing how many writing centers are now making use of e-mail, MOOs (Multi-User Object Oriented environments), Gopher, and the World Wide Web to provide writing assistance to writers around the globe. Provides a list of e-mail addresses, gopher sites, and Web pages. (SR)

Demonstrates how fairly distinctive and long-standing writing center philosophy and practice are reflected in the portfolio method of assessment. Argues that the immediate value of demonstrating a consistency between writing center philosophy and portfolio assessment is that clues for refining and improving the use of portfolios lie in writing…

Discusses the basic principles of baking soda chemistry including the chemical composition of baking soda, its acid-base properties, the reaction of bicarbonate solution with calcium ions, and a description of some general types of chemical reactions. Includes a science activity that involves removing calcium ions from water. (LZ)

Components of a problem-solving lab include eight activity zones: problem setting, information gathering, problem analysis, modeling, problem evaluation, prototype, observation, and television studio. (SK)