Discusses a questionnaire sent to 763 Society for College Science Teaching members to identify problems of teaching nonmajors. Notes the questionnaire had a high return rate. Lists the eight major problems: post negative experiences; motivation; what to teach; abstractions; how to introduce relevance; staying power; inquiry material; and…

The development of a framework for analyzing pupil talk is described and the reliability of scoring transcribed conversions using the framework discussed. Definitions and examples of the terms used in the framework are appended. (Author/YP)

Findings are reported from a study which compared the effectiveness of specialized and general fifth-grade science teachers (N=86). A causal model, derived from path analysis, was constructed to explain the apparent lack of effect on student achievement of the superior preparation and instruction of specialized teachers.(IAH)

Notes that criticism of the training offered by universities to future chemists is well documented. Suggests a 17-step model for the planning of a chemistry course that utilizes a competency-based training program. Explains each step and lists sample objectives. (MVL)

Reviews some important properties of the bimolecular reaction between the hydroxyl radical and carbon monoxide. Investigates the kinetics of the reaction, the temperature and pressure dependence of the rate constant, the state-to-state dynamics of the reaction, and the reverse reaction. (MVL)

Investigates specific strategies and activities used by two chemistry teachers to enhance student understanding of chemistry at the 11th- and 12fth-grade levels. Discusses teacher characteristics, class activities, classroom management, and monitoring for understanding. (YP)

This study reports the instructional effects of issue investigation and action training on the environmental behavior of middle school students. Discussed are the methodology including training and modules, the design of the study, instruments used, scoring protocols, and analysis of results. (Author/CW)

Discusses the use of saline solutions for demonstrations of buoyancy showing oscillations of the Cartesian diver. Describes the physical principles, preparation, and instructional uses for the demonstration. (YP)

Reports on an investigation of a population of dandelions on a school lawn. Describes the objectives, rationale, study area, and the results of the study. Includes tables and graphs that show data collected. (RT)

Offers suggestions for structuring the writing of paragraphs about data tables and conclusions. States that data tables usually contain: the central or most typical value and the variation or spread within the data. Provides steps for writing a paragraph and an evaluation of effectiveness. (RT)

Presents a programed method that inventories and classifies hazards. 8iscusses the following topics: (1) student and hazard source, (2) elimination of the source, (3) adaptation of the source, (4) isolation of the source, (5) adjustment of the surroundings, (6) isolation of man, and (7) personal protective equipment. (MVL)

Describes the peat to coal process. Investigates the organic, inorganic, and sulfur components of coal. Outlines how varying percentages of each are formed. (MVL)

Provides a point of view that the organic lab is a good place for the student to use and learn problem solving skills while performing the cookbook experiments. Notes that an equilibrium between the theoretical and practical aspects of organic chemistry should be established. (MVL)

Presents a strategy for science learning through a game activity which uses human and/or animal footprints. Provides numerous ideas for creativity in constructing a story and adapting tracks for experiential experiences. (RT)

Explains a teaching strategy in which students engage in hands-on activities before being introduced to new terms or reading text material. Outlines the learning cycle phases: exploration, concept introduction, and concept application using example activities. Provides guidelines and checklist for modifying lessons into this format. (RT)