Analyzed are university instructor behaviors in introductory and advanced level laboratories of botany, chemistry, geology, physics and zoology. Science Laboratory Interaction Categories--Teacher (SLIC) was used to assess 15 individual categories of teacher behaviors in the areas of questioning, giving directions, transmitting information,…

The results of using laboratory instruction as part of the total biology program in the Biological Sciences Curriculum Study are reported. (Author/SA)

Issues surrounding the controversial topic of in vitro fertilization and artificial manipulation of reproduction are discussed. The author examines the moral and ethical implications and presents results of a survey of various religious groups. (SA)

Starting from the premise that the assessment of second language learners' competence is a must at several points during the learning process, discusses the usefulness of laboratory testing. Argues that it allows for standardized testing, facility of test administration, easy scoring, objective measures, reliability and validity of results. (MES)

Focuses on molecular weight and molecular weight distributions (MWD) and models for predicting MWD in a pedagogical way. In addition, instrumental methods used to characterize MWD are reviewed with emphasis on physical chemistry of each, including end-group determination, osmometry, light scattering, solution viscosity, fractionation, and…

The pros and cons of laboratory vs. field-based research are debated, and a university-based model program for research at the University of North Carolina at Greensboro into mainstreaming in physical education is described. (JN)

Observational data were collected on 10 industrial education student teachers in laboratory settings. Successful classroom management practices were judged as those in which a maximum amount of time is spent with students actively working on the tasks set by teacher. (SK)

Presents an overview of the university fleet, its purpose, relationship to the rest of the United States oceanographic research fleet, history, cost factors, and other information. (DC)

Described is a new approach to investigative physiology based on computerized transaxial tomography, in which visualization and measurement of the internal structure of the cardiopulmonary system is possible without postmortem, biopsy, or vivisection procedures. Examples are given for application of the Dynamic Spatial Reconstructor (DSR). (CS)

A set of instructions for growing algae successfully in the classroom and maintaining the culture is provided. Aids for identification of freshwater organisms are suggested. (SA)

Reviews the purposes of laboratory instruction as they were perceived in the literature from 1865 to the present. The paper is divided into three sections based upon the main influences on chemistry instruction: the university community, economic conditions, and technological development. Future trends in science education are also discussed. (CS)

Describes a circuit designed to measure time-of-flight velocity and shows how to use it to determine bullet velocity in connection with the ballistic pendulum demonstration of momentum conservation. (Author/GA)

Assesses the educational state-of-the-art regarding physiological simulation. States the importance of conventional physiology laboratory exercises involving living material. (MA)

This series of articles is intended to give vocational agriculture teachers familiarity with the areas of professional liability, basic guidelines to follow to limit liability, and knowledge of the basic legal terminology. (SK)

A number of classroom environmental experiences are presented: indoor and outdoor listening, observation, classification, vocabulary, and role playing. The experiences are outside the realm of science and are adaptable to various grade levels. (Author/SJL)