Presented are basic concepts of chemistry necessary for operators who manage drinking water treatment plants and wastewater facilities. It includes discussions of chemical terms and concepts, laboratory procedures for basic analyses of interest to operators, and discussions of appropriate chemical calculations. Exercises are included and answer…

This module is intended to provide an understanding of the principles related to heat transfer. The objectives are designed to enable the learner to select and install a device for measuring the temperature of a power transistor, determine power ratings, measure the transient response for a power level and its final equilibrium temperature. Other…

A brief summary of the effects of light on plant germination, growth and development, including photoperiodism and pigment formation, introduces 18 experiments and demonstrations which illustrate aspects of these effects. Detailed procedures for each exercise are given, the expected results outlined, and possible sources of difficulty discussed.…

This manual contains a suggested Oceanographic Field Course designed as a supplement to an eighth grade science program. The three principle objectives of the course are: (1) to stimulate the interest of young students in the marine sciences; (2) to instruct students in the scientific method of field observation and laboratory investigation; and…

Robert M. Gagne, Ralph W. Tyler, and Wilbert J. McKeachie, in independently prepared statements made before a summer institute on effective teaching, emphasized that good learning is active rather than passive; stresses the learning of principles; exploits the advantages in newness: exploration of something new, a new practice, a principle learned…

A total program for the preservice education of secondary school biology teachers is suggested in this document based on a joint committee of the Biological Sciences Curriculum Study and the Commission on Undergraduate Education in the Biological Sciences. Suggestions are made for both the professional education and the biology core components of…

Two articles in this newsletter describe programs related to the use of investigative laboratories in college biology; one reports on student reactions to such laboratories; and two articles describe student directed activities concerned with environmental factors. Comments on the changing role of biology in the 70's, and its implication for…

Trends, from 1960 to 1963, in the teaching of chemistry in secondary schools in Austria, Belgium, Denmark, France, Germany, Greece, Ireland, Italy, Netherlands, Norway, Spain, Switzerland, Turkey, United Kingdom, and the United States of America are outlined in the first part of this report of a 1963 working session on the teaching of school…

The present situation of biology teaching in Australian secondary schools is described in Part 1 of the proceedings of the 1970 conference on "Biological Education in Australian Secondary Schools." The six papers discuss the relationship of biology to other science and non-science subjects, enrollment trends, teacher qualifications, and…

Students in a junior college microbiology course were randomly assigned to one of two laboratory treatments: one using radiotracer techniques to investigate aspects of microbial metabolism, and the other using conventional techniques to investigate the same metabolic features. An achievement test administered at the completion of the unit and six…

The effects of two different approaches for teaching the physical science laboratory for non-science majors were compared. The control group had a traditional laboratory with assigned, structured laboratory exercises; the experimental group was subjected to a situation where there was more student involvement in choice of experiment, experimental…

Directions are given for folding paper to show geometric figures and relationships. Topics covered are folding the basic constructions, geometric concepts concerning triangles and quadrilaterals, circle relationships, products and factors, polygon constructions, symmetry, conic sections, and recreations. (DT)

The historical development of the laboratory approach to elementary school mathematics was studied. Consideration was given to the major psychological theories and philosophical movements that affected the development; the views of leading educators and the mathematics projects and practices related to the program were systematically investigated.…

In addition to complete texts or summaries of a number of papers considering the scope and relevance of "environmental studies" to the secondary and elementary school programs in Victoria (Australia), many teaching techniques are described. Techniques for measuring carrying capacity of roadways, examining published air pollution data,…

Performance objectives are stated for each of the five secondary school units included in this package of instructional guides prepared for the Dade County Florida Quinmester Program. All five units are concerned with aspects of physiology; three require no prerequisite study of biology ("Introduction to the Human Body,""Man and…