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Leonard, William H. – Journal of College Science Teaching, 1989
Summarizes research on inquiry and investigative strategies for teaching laboratory science. Concludes that meaningful laboratory instruction is distinguished by: student engagement in science inquiry processes, student manipulation of experimental materials, and the experiential teaching of specific scientific concepts. (RT)
Descriptors: College Science, Educational Research, Inquiry, Laboratory Procedures

Martin, Geoffrey – Journal of Chemical Education, 1988
Describes the chemical analysis and rating system used at "Consumer Reports" in rating antacids. Discusses considerations made concerning dosage and duration of 12 common brands of antacid. (CW)
Descriptors: Chemical Analysis, Chemistry, College Science, Consumer Education

Sprague, Estel D.; Larrabee, C. E., Jr. – Journal of Chemical Education, 1988
Discusses general statistical methods which could be employed to develop homework problems and laboratory exercises. Methods emphasize experimental design and the effects of uncertainties on inferences drawn from experimental data. (CW)
Descriptors: Chemistry, College Science, Computer Uses in Education, Higher Education

Binder, M.; And Others – Journal of Chemical Education, 1988
Describes an apparatus that uses liquified gases to wash solids. Discusses the procedures and processes used to do a wash with liquid sulfur dioxide. (CW)
Descriptors: Chemistry, College Science, Higher Education, Laboratory Procedures

Splittgerber, A. G.; Chinander, L. L. – Journal of Chemical Education, 1988
Outlines a laboratory exercise that makes use of Beer's Law plots of cysteine constructed at several pH values over a broad range of wavelengths to estimate the tautomeric ratio (R) of two singly charged ionic forms, calculate the microscopic constants, and construct ultraviolet spectra for both light absorbing species. (CW)
Descriptors: Biochemistry, Chemistry, College Science, Higher Education

Michalowski, Tadeusz – Journal of Chemical Education, 1988
Discusses the effects of using carbon dioxide contaminated sodium hydroxide solution as a titrant for a solution of a weak monoprotic acid and the resulting distortion of the titration curve in comparison to one obtained when an uncontaminated titrant is used. (CW)
Descriptors: Acids, Chemical Analysis, Chemistry, College Science

Anamuah-Mensah, Jophus; And Others – Journal of Research in Science Teaching, 1987
Reported the development and validation of an integrated model of performance on chemical concept-volumetric analysis. Model was tested on 265 chemistry students in eight schools.Results indicated that for subjects using algorithms without understanding, performance on volumetric analysis problems was not influenced by proportional reasoning…
Descriptors: Academic Achievement, Chemistry, Cognitive Processes, Grade 12

Beasley, Warren – Science Education, 1985
Analyzes three approaches (physical, mental, combined practice) to improving freshman chemistry psychomotor laboratory skills. Although no significant differences were found between treatments, there were significant differences when each was compared to the control sections. Mental practice appears to offer an efficient methods for reinforcement…
Descriptors: Chemistry, College Science, Higher Education, Laboratory Procedures

Scaife, Charles W. J.; Hall, Chadlee D. – Journal of Chemical Education, 1990
Presented is an experiment in which students recover almost 90 percent of the original lead chloride thus saving on costs of chemicals and disposal. Included are experimental procedures and a discussion of typical results. (CW)
Descriptors: Chemistry, College Science, Hazardous Materials, Higher Education

Piszczek, L.; And Others – Journal of Chemical Education, 1988
Examines the usefulness of cyclic voltammetry to the determination of a complex compound's stoichiometry. Discusses the experimental design, laboratory equipment, and results. (CW)
Descriptors: Chemistry, College Science, Higher Education, Inorganic Chemistry

Lock, Roger – School Science Review, 1990
Definitions for the terms open-ended, problem solving, and investigations are considered. The interaction between these terms and teaching styles are discussed. Student influences over the learning process in this type of investigation are examined. (CW)
Descriptors: Experiential Learning, Laboratory Procedures, Problem Solving, Science Activities

Pickering, Miles – Journal of Chemical Education, 1988
Criticizes the way organic chemistry teaching laboratory experiments are approached from the viewpoint of physical chemistry. Compares these experiments to cooking. Stresses that what matters is not the practice of the finger skills of organic chemistry but practice in the style of thinking of organic chemists. (CW)
Descriptors: College Science, Higher Education, Laboratory Procedures, Organic Chemistry

Sotheeswaran, Subramaniam – Journal of Chemical Education, 1988
Describes an experiment for undergraduate chemistry laboratories involving a chemical found in plants and some sea animals. Discusses collection and identification of material, a hemolysis test, preparation of blood-coated agar plates, and application of samples. (CW)
Descriptors: Botany, Chemistry, College Science, Higher Education

Okebukola, Peter Akinsola – School Science and Mathematics, 1986
The effects of cooperative learning on attitudes of students toward laboratory work were studied with ninth-grade biology students in Nigeria. It was found to be successful in developing favorable attitudes. Reasons for this are discussed. (MNS)
Descriptors: Biology, Educational Research, Grade 9, Group Activities

Renner, John W.; And Others – Science Education, 1985
Secondary physics students were interviewed to determine their expectations/actions in laboratory work. Results indicate preference for laboratory activities because such exercises help students remember, are less confusing, and more concrete. Use of the laboratory as an introduction to a concept, followed by discussion, was a key component to…
Descriptors: Enrollment, Interviews, Laboratory Procedures, Learning Processes