In an effort to determine the relative effects on achievement and retention, of three methods of teaching basic electricity disadvantaged students, 48 eighth grade disadvantaged students were randomly assigned to three groups and instructed using either an interaction reinforcement, a summary reinforcement, or neither. The experiment used a…

A computerized library of references to integral neutron experiments has been developed at the Lawrence Radiation Laboratory at Livermore. This library serves as a data base for the systematic retrieval of documents describing diverse critical and bulk nuclear experiments. The evaluation and reduction of the physical parameters of the experiments…

This UNESCO newsletter is divided into these three sections: (1) a student chapter on the rates of chemical reactions; (2) the student laboratory guide; and (3) the teacher laboratory guide. The laboratory guides describe 14 experiments showing students the differences in chemical reactions and how the rate can be affected by temperature,…

Presented in this teacher's guide are ideas and projects to help students develop an awareness and appreciation of their environment. Sharpening the senses is emphasized through activities dealing with water quality, sound qualities, and noise, air quality, solid waste control, and soil management. The text is divided into four levels roughly…

This booklet has been prepared expressly for teachers and students who are interested in investigating the quality of water supplies. The intent is to provide technical support and background information concerning water quality factors and to give basic information on field and laboratory water testing techniques. It is assumed that the reader is…

An experiment in language instruction undertaken in Canadian junior high schools during the 1960-61 school year is reported in this study. The pilot project: (1) examines the phenomena of learning to comprehend and speak French through two different but direct modes of instruction; (2) compares by achievement tests the results of the two modes of…

Three experiments are presented in this Science Study Aid to provide the teacher with some fundamental air pollution activities. The first experiment involved particulates, the second deals with microorganisms, and the third looks at gases in the atmosphere. Each activity outlines introductory information, objectives, materials required, procedure…

A SUMMER PROGRAM IN THE DESIGN AND ANALYSIS OF EDUCATIONAL EXPERIMENTS WAS HELD AND ITS RESULTS REPORTED. EXPERIMENTAL DESIGN, STATISTICAL ANALYSIS, COMPUTER USAGE, PREPARATION OF RESEARCH PROPOSALS, SPECIAL TOPICS, AND INDEPENDENT STUDY WERE DISCUSSED. TO AID IN THE EVALUATION OF THE PROGRAM, EACH OF THE 30 PARTICIPANTS ANSWERED A QUESTIONNAIRE…

The purpose of the study is to provide information concerning the self esteem of blacks and whites under conditions of integrative and segregative simulated work groups. Subjects were 96 undergraduate students, half black and half white, who performed three laboratory tasks. Ziller's self esteem scales were used to measure the self esteem of…

This publication, published quarterly by the American Institute of Biological Sciences, focuses on biology education in colleges and universities. Included in this issue are articles dealing with mini-investigative labs in microbiology for nonscience students, the effects of various components of the Keller system on student attitudes and…

Describes a number of undergraduate laboratory experiments that illustrate the science of alchemy as it was historically practiced. (MLH)

Describes a dry-lab experiment in which the student is provided with a set of fluorescence spectra of quinine for study and interpretation. (MLH)

Describes undergraduate experiments concerning three topics: oxygen carriers, nitrogen fixation, and metal activated enzymes. (MLH)

Describes a simple microwave interferometer capable of measuring small phase shifts. Proposes laboratory exercises involving the use of the interferometer in the determination of refractive indices of gases and the analysis of the reflection in a test chamber. (Author/CP)

Presents three activities: (1) the investigation of the purity and stability of nicotinamide and flavin coenzymes; (2) desk-computer fitting of a two-exponential function; and (3) an interesting and inexpensive solubility product experiment for introductory chemistry. (RH)