Describes an investigation of the role expectations perceived by practicing two-year college biology instructors. Considers the potential inconsistency between preservice graduate training and current hiring criteria and associated role expectations. Finds training adequate for hiring criteria but less adequate for preparing instructors for role…

Background information, procedures used, and typical results obtained are provided for experiments in which caterpillars are used to investigate energy-flow relationships. Areas in which the experiments could be used include ecology, applied biology, and animal feeding. (DH)

Discusses the need for school sex education and presents an evaluation of the New York City school system's Family Living-Sex Education curriculum. Reports that this K-12 program was more successful in increasing knowledge than attitudes. Recommends that topics related to personal interrelationships and human reproduction be introduced earlier in…

Offers an alternative to kymography systems for undergraduates in physiology courses. Explains how an easy-to-build transducer can be used for recording diverse physiological phenomena. Reviews the theory of transducer function and explains the performance of the microcomputer kymography. (ML)

Explains the structural organization of DNA by providing information on the primary, secondary, tertiary, and higher organization levels of the molecule. Also includes illustrations and descriptions of sign-inversion and rotating models for supercoiling of DNA. (ML)

Presents a classroom experiment that demonstrates the directional sensitivity of the human ear. Outlines the activity's procedures and provides a diagrammatical view of the experimental arrangement. Also included is an analysis of the expected results. (ML)

Investigated secondary-level students' (N=66) understanding of three-dimensional structures in biology. Results suggest that student performance is highly correlated with age, scientific ability, and sex. Suggestions for instructional improvement in spatial relationships are offered. (ML)

Identified some of the misconceptions held by secondary science students (N=232) related to selected ecological concepts and generalizations. Lists the alternative conceptions expressed by these students on food chains and energy flows and pyramids. Offers perspectives on dealing with the sources of the misconceptions. (ML)

Describes various resources for teaching problem-solving. They include: (1) several books with a problem-solving emphasis; (2) a workshop focusing on the attitudinal components of thinking and problem-solving; and (3) a summary of a study dealing with problem-solving in the context of high school physics. (JN)

Outlines activities for each of eight science process skills (observing, using space/time relationships, classifying, using numbers, measuring, communicating, predicting, and inferring). Directions for the activities (all of which use sea shells) are included. (DH)

Assessed knowledge and attitude changes resulting from home viewing of a Cousteau Society documentary on marine mammals and compares these changes with those resulting from a science teacher's presentation on the documentary's script. Results show increased and retainable knowledge and temporary change in attitudes among ninth-grade students.…

Discusses teaching methods for less able students, contradictions on the status of primary science, student produced slide-tape programs, and a world studies perspective for third-year chemistry. Also reports on science and personal education, chemistry examinations of the department of science and art, and astronomy in schools. (DH)

Presents information on the population density, breeding biology, habitats, and food of the magpie bird ("Pica pica"). Suggests and outlines several student projects that have been beneficial in teaching animal behavior and ecology. These investigations focus on diet, territory size, and food hoarding. (DH)

Examined 297 students in biology classes where girls are encouraged in science, focusing on actual science experiences, masculine/feminine tasks, extracurricular science activities, feelings about science classes, research funding, and science career interest. Suggests that equal experiences within science classrooms do not overcome advantages…

Indiana University-Purdue University at Indianapolis developed the Weekend College, a program specially planned for working adult learners. Describes this program (which offers courses on Saturdays and Sundays) and a five-credit laboratory course in human physiology. Instructional strategies used and advantages/disadvantages of weekend courses are…