Describes the process of osmosis from its discovery by Nollet in 1848 to modern applications. Uses experimental descriptions, illustrations, and photographs to explain osmosis. Discusses the technology of producing perfect filters and their applications in reverse osmosis to purify salt water and to filter blood in kidney machines. (PR)

Utilized an experimental design structure across 4 scientific contexts which tested 18 boys and 18 girls who were closely matched for ability levels and curriculum background. No gender differences were detected in the scientific contexts of observation, reporting, or planning skills, and there was no differential performance on the use of…

Median polishing, an exploratory data statistical analysis technique, was used to study achievement patterns for men and women on the Pharmacy College Admission Test over a six-year period. In general, a declining trend in scores was found, and males performed better than females, with the largest differences found in chemistry and biology.…

Three learning activities--story generation, reasoning from historical information, and computer modeling--that are designed to help students move toward a more coherent understanding of biological mechanisms are described. A method used to measure a student's level of understanding and their progress during instruction is also described. Ways to…

The impact of frequency of classroom testing on achievement was studied for nearly 2,000 tenth grade male biology students in Saudi Arabia tested monthly or semimonthly. Students tested more often outperformed others on end-of-semester and delayed recall (three months) tests. (SLD)

The issues, roles, dynamics, rationales and events embroiled in the dissection controversy are discussed. Insights into where the politics of biology education without speciesism or dissection are likely to take science education in the future are provided. (KR)

Presents a replication study to determine the effects of an innovative activity-centered biology program on attitudes toward science teaching among 159 prospective elementary teachers. Concludes that the course was influential in promoting positive teacher attitudes toward science and science teaching and recommends that the course be incorporated…

Describes St. Elizabeth School's (Dallas, Texas) adoption of Stanford University's HumBio curriculum, a human biology program for middle school students, which combines scientific inquiry with basic health information and moral decision-making skills. Highlights the program's emphasis on flexibility and teacher creativity. (MAB)

Applies microcomputer technology to the development of a data acquisition and analysis system for the study of measuring the human lung capacity and metabolism. Discusses the chain-compensated spirometer, interfacing hardware, data acquisition hardware and software, and the applicability of the system to other biological measurements. (MDH)

Discusses traditional school demonstrations and experiments in hydrotropism. Explains that these experiments seem to "prove" hydrotropism, but yet most botanists reject hydrotropism. Teachers continue to teach the concept because it is logical and the experiments are simple. (PR)

Describes an activity for studying weeds in grades four through nine. "Wanted" posters are prepared with the scientific name of a common weed and a few identifying features. Students find the plant, give it an "alias" or common name, and then draw the "wanted" picture. Presents six wanted posters and describes expansion lessons and follow-up…

Describes novice biology teachers' strategies to exert sociolinguistic control over conversations when teaching unfamiliar science content; illustrates discourse control strategies used in one teacher's lessons. Findings suggest that teacher knowledge influences how teachers begin instruction, structure turns at talk, question students, evaluate…

From respondents to a questionnaire sent to a random sample of 654 Texas biology teachers, the following conclusions were made: 86% agreed evolution should be taught, 47% agreed it was a central theme in biology, 8% indicated that it conflicted with the Bible, and 7% noted there were more useful alternative theories explaining the history of the…

Describes NEMATODE GLOSSARY, a hypertext glossary of terminology used in graduate nematology courses. Glossary definitions of anatomical terms are linked to color illustrations. Common names of plant and animal parasites and mnemonic codes for nematode genes are in separate appendices. (Author/MDH)

Presents a series of books that serve as guides regarding outdoor activities for biology classes. Guides are categorized for the general study of nature and for the specific topics of birds, insects, and plants. (25 references) (MDH)