The current manual NO (x) sampling and analysis method was evaluated. Improved time-integrated sampling and rapid analysis methods were developed. In the new method, the sample gas is drawn through a heated bed of uniquely active, crystalline, Pb02 where NO (x) is quantitatively absorbed. Nitrate ion is later extracted with water and the…

Methods of teaching physics and chemistry, which revolve around the inclusion of high school courses within the overall science curriculum and whose emphasis is on the latest developments in scientific research and technology, were the subject of the thirteenth annual Summer School for Senior Science Teachers. Paper themes are concerned with…

The major purpose of this study was to design and evaluate a programed instructional unit for a first year college chemistry course. The topic of the unit was the categorization and solution of acid-base equilibria problems. The experimental programed instruction text was used by 41 students and the fifth edition of Schaum's Theory and Problems of…

Predictor variables were sought relating to the decision of secondary school students to enroll or not enroll in chemistry and physics courses. Questionnaires were developed and administered to 404 students enrolled in chemistry and 358 not enrolled, and to 472 students enrolled in physics and 475 not taking physics. Rural, suburban and urban…

This newsletter contains student experiments and demonstrations suitable for secondary chemistry instruction as well as laboratory safety tips, book reviews and several activities involving the chemistry of winemaking and crime detection. Articles include those on carbon disulfide bonding, the electrolysis of sodium chloride, a simple and accurate…

Chemical engineers in developing countries may need abilities in a number of diverse areas including management, planning, chemistry, equipment, processes, politics, and improvisation. Chemical engineering programs for foreign students can be arranged by informed advisers with student input for inclusion of some of these areas in addition to…

This booklet is a student manual in a series of booklets that make up the core of a Physical Science course designed for the freshman year of college and used by teachers in the 27 colleges participating in the Thirteen College Curriculum Program. This program is a curriculum revision project in support of 13 predominantly Negro colleges and…

This study investigated the feasibility of using computer-simulated experiments in high school physics and chemistry. Fifteen sections of students enrolled in high school physics and chemistry were randomly divided into experimental and control groups. A series of 10 experiments was done by use of computer simulation in the experimental group;…

The purpose of this study was to determine if the effects of an instructional program would affect the performance of general education chemistry students with respect to objectives related to the methods of science and the degree to which they are effective in simultaneously teaching the descriptive chemistry of certain elements. The mode of…

This course guide is designed to aid chemistry instructors in teaching the skills and knowledge needed by those students planning to take junior college chemistry and is composed of 11 terminal performance objectives, with intermediate performance objectives and sample criterion measures. Suggestions for related laboratory activities are also…

This study concentrated on three problems dealing with academic backgrounds related to achievement in college freshman programs in chemistry. One problem was related to the high school science curriculum. The other problems involved the possibility of devising a prediction scheme based on a student's academic background, and the possibility of…

The bibliography is intended to provide a comprehensive source of information on the sampling and monitoring of particulates in flowing gas streams. It also includes methods of measurement which were initially applied to the measurement of dust in still atmospheres, but which either have been or may be used in the future for measurements in…

This report presents the procedures, results, and conclusions of a study to determine the characteristics of secondary school chemistry students who were successful in grasping a mathematical approach to learning chemical equilibrium. Subjects were eighty-nine students enrolled in chemistry at a rural-suburban high school; each student had…

The material presented in this three-volume manual is a summary of the history and experiences of the Huntington Computer Project, and the purpose of the manual is to assist high school teachers and other educators who wish to explore the uses of computers in high schools. The first volume contains an introductory section which gives the…

Described are the science syllabuses and texts for the science courses written to fulfill the aims of the new system of education in the state of New South Wales, Australia. The science course was developed in two stages: (1) A four year integrated science syllabus for grades 7-10, and (2) separate courses in physics, chemistry, and biology with…