Presents position statements indicating the necessity of laboratory experiences for the teaching and learning of science in the elementary school. Three different perspectives are addressed: research, curriculum, and teaching. (DS)

A list of demonstrations of discrepant events which have been found to stimulate the curiosity of students in science at the secondary school level are presented. A brief description of the materials and procedures for 15 of these demonstrations is outlined, with short explanations of concepts and principles involved. (MP)

Reported is a technique for chromosome staining that is simple, rapid, inexpensive, and requires little skill for success. (PB)

Describes experiments in which inexpensive or standard laboratory equipment is used to measure several macroscopic magnetic properties of thin rare earth garnet films used in the manufacture of magnetic bubble devices. (Author/CS)

Chemicals, asbestos, lead, and other substances used in classrooms, labs, art studios, and school lunchrooms pose risks to both students and teachers. Yet little is being done in a comprehensive manner to eliminate these risks. (Author/GC)

An attempt to attain various high level aims such as "training the mind,""developing judgment," and "achieving independence" within the framework of a first-year physics laboratory course is described. Evaluations of the course and the effectiveness of consequent improvements are discussed. (Author/MLW)

Reports a procedure for the formation of alkyldiazenido complexes of molybdenum in the absence of dioxygen, suitable for inclusion in an advanced inorganic chemistry laboratory. Includes background information and experimental procedures for two complexes. (SK)

Suggests that students study heats of neutralization of a 1 M solution of an unknown acid by 1 M solution of a strong base using the method continuous variation. Reviews results using several common acids. (SK)

Describes a multichannel analyzer built using eight-bit S-100 bus microcomputer hardware. The output modes are an oscilloscope display, print data, and send data to another computer. Discusses the system's hardware, software, costs, and advantages relative to commercial multichannels. (Author/GA)

Describes a laboratory exercise to demonstrate enzyme activity using gelatin and meat tenderizer. The exercise is adaptable to any grade level. (MA)

Some possible uses of math lab materials and activities that are natural and appropriate to the development of process skills are explored through a discussion of a geoboard activity. (MP)

Discusses the possibilities and the potentials of advancing the state of the art in computer chemistry. Explains that the fears will be extrapolating new compounds from existing ones, and predicting new activities based on chemical structure. (GA)

The authors present an alternative model for training in organizational development (OD) which differs from other such models by being eclectic, inexpensive, and applicable to participants with varying degrees of experience. A design for a training laboratory is elaborated and related to theories about OD and about learning processes. (SK)

Presents an overview of the construction techniques of dye lasers suitable for student projects and briefly describes possible laboratory projects. (JN)

Capsulizes the main premises of the articles in the UCLA Educator Winter 1980 issue on laboratory schools (EJ 228 397-405), focusing on issues of mission, support, and laboratory schools in a nonuniversity setting. (CAM)