Discusses a history exhibit of the American Chemical Society, now on national tour. Focuses on lecture to laboratory, chemistry in early America, the Civil War era, the research model, the early twentieth century, the post-war era, textbooks, and the recent past. (MVL)

Discusses a high school physics course for a vocational program. Describes the development, organization, characteristics, and pilot test results for "Principles of Technology." (YP)

Highlighting the importance of precision in recording, analyzing, and interpreting data in experimental psychology courses, the author proposes that students be assigned grades of A or F for the results section of laboratory reports. Papers receiving F's could be resubmitted for reduced grades until they are free of errors. (GEA)

Describes the use of a simulated learning environment (SLE) as an instructional aid in teaching multivariate statistics, particularly inferential statistics. A prototype microcomputer-based SLE called MVWORLD developed at Drexel University for upper level statistics courses is explained, and implementing a statistics laboratory for multivariate…

Reports a method of preparation for tris(ethylenediamine)cobalt(III) and tris(2,2'-bipyridine)cobalt(III) that will shorten the preparation time by approximately 3 hours. Notes the time for synthesis and isolation of compound one was 1 hour (yield 38 percent) while compound two took 50 minutes (yield 71%). (MVL)

Describes an exercise in which students convert lithostratigraphic columns into chronostratigraphic columns, infer paleolatitude using paleomagnetic data, interpret depositional environments, determine the timing of deformation and terrane collision, construct models, and synthesize the results into a geologic history. Background data, procedures,…

Describes a computer program which represents the first merger of an expert system and imaging technology into a tool to assist in learning mineral identification. Presents a discussion of the system's development, evaluation of effectiveness, and future modifications. (RT)

Describes the usefulness of glyphosate for a demonstration of its herbicidal properties. Includes a list of the materials, preparation of solutions, procedures, data collection and analysis for three activities involving this chemical. (CW)

Finding ways to demonstrate microscopic phenomena and contending with life science students' lack of interest in physical principles are two problems in laboratory courses. Describes a clinical laboratory test for parasite infection that can be used to effectively solve both of them. (RT)

Describes a lab investigation designed to introduce students to soil compaction and help them to learn to design and adapt procedures that scientists use when they plan and conduct controlled investigations. Provided are objectives, a list of materials, procedures, and a sample student handout. (CW)

Describes an activity designed to allow secondary students to practice pattern recognition using the proof-of-purchase scanning lines found on many consumer products. Provided are a list of materials, procedures, and student activity sheets. (CW)

Describes the development and integration of UDEMOG, a computer-assisted instruction system for teaching demographic related topics that was designed at the University of Delaware. Software programs and spreadsheet data files are described, hardware based on IBM equipment is discussed, and use in the classroom and in computer laboratories is…

Describes the use of instructional technology at Western Middle School (Kentucky), an inner-city school that serves low-income neighborhoods. Highlights include computer labs; laptop computers to sign out for class projects; MacCSILE, Computer-Supported Intentional Learning Environment with Macintosh computers; and improvement in students' test…

Summarizes alternatives to using live animals for the teaching of veterinary medicine both currently and over time. Advantages of using teaching alternatives include low cost, accessibility, completeness, psychomotor skill training, ease of repetitive use, and humanness to both the animal and the person. (Author/MDH)

Defines a few major reasons for the frequent failure of laboratory instructional methods and outlines some modes of thinking that seem to promise greater effectiveness and firmer justification for maintaining the laboratory as an essential component of physics teaching. (MVL)