Proposes a dialogic method of training tutors, based on a learning theory which views the "class" as a conversation, where teacher and learner are indistinguishable. Asserts that where dialogue is lacking, information may be transferred, but little is learned. (MM)

Contrasts the advantages and disadvantages of writing center tutors who are familiar with the subject matter in a given field or discipline with those who are not. Asserts that by being "ignorant" of the subject matter, a tutor forces students to take responsibility for their writing. (MM)

Asserts that the advantages of word processing for business writing classes are clear. Even though a teacher confronts giving up some lecture or discussion time, the hour spent in the lab frees students from tedious recopying, provides the teacher with professional-looking papers, and permits time for more writing assignments. (RAE)

Three alternative instructional methods (instructor demonstration, demonstration plus independent study, and slide-tape presentation) for a basic food preparation laboratory were developed to facilitate the increased student achievement levels. Student performance, attitudinal, time, and cost data showed differences in effectiveness among the…

Described is a series of five related microcomputer-based laboratory analysis programs that are used by students in a college calculus-based physics course. With minor modifications these programs, which are written in BASIC, could be used in most beginning undergraduate laboratory science courses. (RH)

Discusses various types of visual impairments and how the learning environment can be adapted to limit their effect. Presents suggestions for adapting industrial arts laboratory activities to maintain safety standards while allowing the visually impaired to participate. (CH)

Describes the history of use of language laboratories in foreign language instruction and argues that both the quality and quantity of such activities fell short of the laboratories' potential. (CB)

Describes a model using correctional industries to train inmates for successful existence in the labor force after release. (CH)

Describes the use of the jigsaw teaching technique (which requires each member of a small group to provide a key piece of information) in undergraduate psychology laboratory and discussion classes. Results indicate that students evaluate the approach favorably and that their academic performance improves with use of the jigsaw technique. (JDH)

Describes a qualitative analysis laboratory in which students examine specific precipitates that can be used to identify copper, cobalt, nickel, and iron cations. The objective of the laboratory is to determine which test or sequence of tests unambiguously identifies each cation and to use the results to identify several unknowns. (JN)

Offers selections from papers which illustrate accidents, epidemics, and bad practices which could be used as background material for lessons on laboratory safety. Advocates the need for instruction on pathogenicity and infectivity. (ML)

Ink-cap mushrooms can be easily grown in culture and provide students with ideal material for studying a wide range of biological problems. The life cycle is discussed extensively with hints for inoculating plates, staining, and isolating basidiospores. Exercises are easy, safe, and provide opportunity to demonstrate several microbiological…

The food preservative sorbic acid can be extracted from Eurasian mountain ash berries (commercially available) and used to show antifungal properties in microbiological investigations. Techniques for extraction, purification, ultraviolet analysis, and experiments displaying antifungal activity are described. A systematic search for similar…

The use of green, red, and far-red light-emitting diodes (LEDs) as light sources for plant physiological studies is outlined and evaluated. Indicates that LED lamps have the advantage over conventional light sources in that they are lightweight, low-cost, portable, easily constructed, and do not require color filters. (Author/DH)

Microcomputers can record laboratory measurements which human laboratory partners can never collect. Simple, harder, and general-purpose interfaces are discussed, with suggestions for several experiments involving an exercise bike, acceleration, and pendulums. Additional applications with pH meters, spectrophotometers, and chromatographs are also…