Presented are four how-to-do-it projects including: an environmental education museum, developing chick embryos in plastic bags, construction of an arthropod holding device, and safety planning for beach field trips. (SL)

The author discusses the interrelationship between hypotheses and the predictions they generate. He uses spiders, behavior models, and the Civil War as examples to illustrate his discussion. The author believes that it is the responsibility of science instructors to teach an understanding of the nature of science to their students. (MA)

A description of ecosystem science is presented along with some suggestions for its institutionalization and some projections on its future. Also the future of ecosystems and the possible impact of that future on biology and ecology teaching is discussed. (MR)

This article reviews recent research studies and experiences relating the learning theories of Ausubel to biology instruction. Also some suggestions are made for future research on the learning of biology. (MR)

Presents a way to teach energy, economics, systems and environment as a whole, using symbols. Symbolic representations of energy systems and several teaching activity suggestions are included. (MR)

Provides an informative discussion of the disease called schistosomiasis. The discussion covers environmental factors contributing to the disease, its symptoms, the disease organism and its vectors, and treatment of the disease. The author points out the need for water and soil pollution control in disease prone areas. (MR)

In this essay teaching science to both cerebral hemispheres is advocated. Some of the literature supporting this point of view is discussed and a fantasy imagination exercise is also included. (MR)

Suggests ways of and reasons for making high school biology courses more exciting and relevant to students. (MR)

Brief analyses of three recent examples of biological determinism: sex roles, overpopulation, and sociobiology, are presented in this article. Also a brief discussion of biological determinism and education is presented. (MR)

An alternative method of bacterial spore staining using malachite green is described. This technique is designed to save time and expense by a less messy procedure. Advantages and adaptations of the technique are also given. (MR)

This article introduces the reader to Outdoor Biology Instructional Strategies (OBIS) materials. These materials are designed to teach children an understanding of basic ecological relationships. One teacher's use of OBIS materials with 7th graders is described. (MR)

Described is a program in genetics that combines a written text with a computer simulated laboratory applying problem solving methods. Examples of sample materials are included. (MA)

Urban school districts are discovering city parks as a place for students to learn about their environment through biological investigation. Outlined are some of the activities that are appropriate for students of various grade levels working in a park setting. (MA)

Callus induction from species of Haworthia can be done quickly in the laboratory with minimal equipment to study tissue dedifferentiation and cellular redifferentiation. It is shown that the cultured cell can also be used to study and evaluate the effects of various mutagens, carcinogens, and pesticides in controlled environments. (Author/MA)

Explored is the problem of world population trends and food distribution. In discussing the need for a global ethic for the allocation of resources, numerous references are cited. (MA)