Presents a quick and easy demonstration of species-area relationships. Focuses on common cynipid rose galls which can be found over much of North America. (ASK)

Presents reviews of literature for the following areas: perceptions and attitudes; curriculum and instruction; women and minorities; and the physical environment, educational technologies and support services. (PR)

Presents an activity that involves dropping spherical party balloons onto a sonic motion sensor to show that the force associated with the air resistance is proportional to both the square of the velocity and the cross-sectional area of the balloon. (Author/WRM)

Presents a simple model that can help students think about evolution and better understand the gradualist and punctuationist macroevolution approaches. The model also improves instruction for concepts of mutation, selection, fitness, extinction, and origin of life. Describes an IBM computer program for instruction in these areas. (PR)

Describes a 16-week course in marine biology involving a class-coordinated investigation of a subtropical biotic fringing reef of Hawaii. Describes in detail the development of preliminary hypotheses regarding general cause-effect relationships on the reef, and the exploration of specific areas, such as chemical or physical factors. (CS)

Describes ways to examine leaf structure and shape using fractal geometry. Students can test hypotheses using the leaves of replicated plants to look for non-linear trends in leaf shape along the stems of plants, across species, and under different environmental growth conditions. (SAH)

The study of starlings in the urban environment integrates nervous regulation, the senses, and animal behavior, while also providing an excellent example of how the biology of an animal is related to the demands of the physical environment. (PR)