Presents a thorough overview of the many factors contributing to air and water pollution, outlines the chemical reactions involved in producing toxic end-products, and describes some of the consequences of pollutants on human health and ecosystems. (JR)

Describes the development of activity centered science minicourses in an isolated California high school, and lists the characteristics considered essential for a good minicourse curriculum. Advocates a program in which specialist teachers travel between small rural schools with limited resources, presenting well developed and exciting…

Describes in general terms the nature of Alternative Schools, and more specifically discusses the program at Alternative School East, which serves four public school districts in the Philadelphia area. Outlines the curriculum and teaching methods used in biology. An interdisciplinary approach and learning activities in the community are…

The National Assessment of Educational Progress (NAEP) is a census-like survey of the knowledge, skills, understandings, and attitudes of young Americans. This abridged report deals with the data collected in science during the first round of assessment in 1969-70. (JR) Aspect of National Assessment (NAEP) dealt with in this document: Results…

Discusses the results of a study which indicate that teachers' grading practices affect enrollment in science subjects. The study suggests that the elimination of disparities between grading in the sciences (especially physics and chemistry) and in other subjects will often yield substantial gains in science enrollment. (JR)

Describes a system of grading and grade reporting adopted at the Chapel Hill-Chauncy Hall School, Massachusetts, for classes in science and mathematics. Attempts to make grades more truly indicators of a level of performance by pointing out an individual's strengths and weaknesses in a given subject area. (JR)

Argues forcefully that the assignment of grades can have more deleterious than beneficial effects in education. The theme that grading should be abolished is developed by answering a series of commonly asked questions about evaluation of students. (JR)

Discusses the importance of the electron microscope, and in particular the scanning electron microscope, in studying the surface topography, sectional substructures, and patterns of development of pollen grains. The production, dispersal methods, and structure of pollen grains are described and illustrated with numerous electron micrographs. (JR)

Reports the current situation in a number of states regarding the controversy of teaching evolution and creatonist theories in science classes. (JR)

Focuses on ways in which the National Science Teachers Association, as an organization, is involved in international science education. (JR)

Outlines some of the problems and forces presently at work in our society, and examines new directions emerging for science education in the next decade. (JR)