An experiment was designed and conducted for the Community College Department of Sociology. The objective was to determine the significant difference between the objective knowledge of sociology learned, and retained by groups taught by the systems approach method as compared to the lecture-discussion method. The systems analysis method is based…

Problems encountered at Black Hawk High School, Wisconsin, in an attempt to expand the French curriculum to include a level 3 and a level 4 course are examined in this article. Solutions to the difficulties caused by inadequate classroom space and insufficient funds lead the author to propose the elimination of the traditional, advanced-course…

Describes two demonstrations to illustrate characteristics of substances. Outlines a method to detect the changes in pH levels during the electrolysis of water. Uses water pistols, one filled with methane gas and the other filled with water, to illustrate the differences in these two substances. (TW)

Discusses the potential of experiments as a vehicle and to motivate students to use text references to look up further information such as nomenclature, molecular geometry, properties and reactivities for various ions and molecules. Describes the procedures and discussion for three such experiments. (TW)

Describes an activity in which students collect airborne particles using a common vacuum cleaner. Suggests ways for the students to convert their data into information related to air pollution and human health. Urges consideration of weather patterns when analyzing the results of the investigation. (TW)

Argues that cookbook chemistry laboratory experiments do little to teach scientific inquiry. Suggests providing students with laboratory experiences that follow the introduction of a concept and challenge students to investigate that concept through an experiment involving very few initial instructions. Lists some such challenges used in chemistry…

Describes two laboratory demonstrations in chemistry. One uses dry ice, freon, and freezer bags to demonstrate volume changes, vapor-liquid equilibrium, a simulation of a rain forest, and vaporization. The other uses the clock reaction technique to illustrate fast reactions and kinetic problems in releasing carbon dioxide during respiration. (TW)

Describes an introductory chemistry experiment that can be used for lead-in discussions for a variety of topics. Stresses this experiment's ease because of measuring simplicity and familiarity of materials, and its value of reinforcing proper observation and recording techniques while getting students to think about techniques and concepts of…

Describes a laboratory course taught at the University of Manchester Institute of Science and Technology (United Kingdom) which focuses on the preparation, properties, and applications of end-use products of the chemical industry. Outlines laboratory experiments on dyes, fibers, herbicides, performance testing, antioxidants, and surface active…

Describes a British secondary school's use of a spectrometer to identify minerals. Discusses the origins of mineral spectra, the preparation of the specimen, the actual spectroscopic scanning, and the interpretation of the spectra. (TW)

This document proposes that preservice teachers assess various learning philosophies to find methods that may be useful in teaching at the higher education level. In the first section of the paper ten broad principles of teaching are cited: developing and maintaining student interest; motivating learners; providing useful learning opportunities;…

This paper describes the Project for Integrating the University, the School, and Society (PIUES), developed as part of an effort to restructure the teaching of engineering at the Pontifical Catholic University in Rio de Janeiro, Brazil. New courses for high school teachers were developed that focused on the debates over basic concepts in…

Varying aspects of the study of psychology are discussed focusing on the shortcomings of the traditional definition of psychology as the study of behavior. Effects of cognitive, experimental, and applied psychology are examined, and a general concept of psychology as the study of the mind and mental processes is advanced. (BH)

Explores the structural behavior of polyenic pi systems such as isomerization and conjugation. Uses the simultaneous spectrophotometric analysis of a beta-carotene and lycopene mixture. Presents an empirical method to determine the number of double bonds in the polyenic carotenoid. (MVL)