Presents a viewpoint regarding guidelines that should be established in publishing reports of teaching innovation in laboratory courses. (CS)

Describes some undergraduate laboratory experiments in acoustics which involve the analysis of speech and musical instrument sounds and the general analysis of the frequency range of complex sounds. (HM)

Presents the "extended discretion" approach as another dimension to conventional biology laboratory investigations. Results of a study comparing this approach to BSCS investigations indicate that tenth-grade students can handle increased discretionary demands related to their learning activities, thus encouraging responsibility and…

A language experience approach to teaching reading is a multifaceted program that encompasses more than just self-expression. (Author/JM)

Reports methods for identifying carcinogens and suspected carcinogens in the undergraduate laboratory and makes recommendations for their elimination or control. (CS)

Presents experiments that illustrate some physiologically important aspects of ligand binding to hemoglobin. (CS)

Describes a technique for the supercooling of water, for use in the science classroom, involving adding common salt to a mixture of ice and water. Several investigations are included for use during (and after) the process of supercooling. (DS)

The value of the language laboratory of self-instruction is stressed. Methods of using multi-phase drills are given, proceeding from cue repetition to open-ended situations. The presentation of prose texts in the laboratory is examined. (Author/JB)

A test is described in which three psychotropic drugs were evaluated for their effects on pregnant rats. Behavioral changes are given. (SA)

Described are various methods for producing black and white photographs of microscope slides using single lens reflex, fixed lens, and plate cameras. Procedures for illumination, film processing, mounting, and projection are also discussed. A table of comparative film speeds is included. (CS)

Describes a college child development course which included a "Living Lab" that provided opportunities for the students to observe and interact with 15 parents and their children. (SS)

The year-old volunteer council on Undergraduate Research has published a directory of facilities available in chemistry departments of 93 private colleges. The council is weighing other projects, such as, a quarterly newsletter, a national conference on undergraduate research, and the expansion of the council to include physics and biology.

Explains how to demonstrate the following: the hysteresis effect and the existence of domains in Rochelle salt (sodium potassium tartrate); diffraction experiments using a slide with multiple slits; and an analogue technique for learning terminal velocity. (GA)

Discusses the existence of spirals in nature in general, supplying many examples, and explains how a particular organism, Phycomyces, accomplishes this feat. (GA)

Describes the following: a low-pressure sodium light source; a design of hot cathodes for plasma and electron physics experiments; a demonstration cart for a physics of sound course; Bernoulli force using coffee cups; a spark recording for the linear air track; and a demonstration of the effect of altering the cavity resonance of a violin. (GA)