Describes laboratory activities which relate the mass, volume, density, and radii of atoms through the assumption that the smallest unit of matter is a cubic box containing one atom. From calculations based on macroscopic materials, the author feels that the concept of an atom may be better developed. (CP)

Discovery teaching advocates minimal teacher guidance. Materials from two curriculum development projects were evaluated with respect to this guidance. Results indicate a considerable discrepancy between curriculum intention and reality, as measured by the degree of teacher guidance afforded in the projects' instructional materials. (CP)

Describes an advanced analytical chemistry laboratory experiment developed for the determination of the performance parameters of a spectrophotometer. Among the parameters are the baseline linearity with wavelength, wavelength accuracy and respectability, stray light, noise level and pen response time. (HM)

Describes the educational reform of a developing socialist nation in Africa. Outlines the educational principles, policies, and practices which are aimed at the socialization of the child in order to integrate him into his community while equipping him with the practical and intellectual means of transforming it. (Author/JK)

Reports a classroom experiment by future teachers at the University of Iowa to compare a traditional teacher-managed method of instruction to a student-managed method. Subject matter was a data processing unit of a secondary school bookkeeping course. No significant differences in student achievement scores were found. (MF)

Brief suggestions for laboratory and classroom instruction in various chemistry topics are provided. (CP)

Lecture and laboratory topics of a one-quarter, undergraduate course designed to introduce students to chemical principles and phenomena involving the automobile are described. (CP)

Contains contributed suggestions in the teaching of structure and bonding and reaction rates and equilibria in the Nuffield Advanced Chemistry Project. (CP)

Described is an approach for teaching the concept of mass to elementary students. A method for making simple balances and weight sets is also given. (MR)

Describes a home-based supplementary science program for elementary school age children. The program emphasizes process skill application, simple equipment, and the use of parents as experiment advisors. (CP)

Describes various demonstrations and experiments simulating groundwater flow and chemical reactions. (SL)

Describes an interactive computer program which allows students to perform simulated quantum measurements on a one-dimensional harmonic oscillator. (SL)

Presents insights resulting from an inter-generational living/learning project involving university students and older adults. Techniques are suggested for teaching social sciences with emphasis on the elderly. (Author/DB)

Describes a method designed to balance oxidation-reduction chemical equations. Outlines a method which is based on changes in the oxidation number that can be applied to both molecular reactions and ionic reactions. Provides examples and delineates the steps to follow for each type of equation balancing. (TW)

Suggests ways to avoid some of the problems students have learning the principles of organometallic chemistry. Provides a description of an experiment used in a third-year college chemistry laboratory on molybdenum. (TW)