Samara (winged seeds from maple and ash trees) can be used for open-ended inquiry or a series of directed science activities. Attributes, observations/inferences, drawing, motion, floating, seed structure, creative design, and measurement are some of the suggestions for classroom use of these seeds. (DH)

Presented is a biological game utilized to teach fungi life cycles to secondary biology students. The game is designed to overcome difficulties of correlating schematic drawings with images seen through the microscope, correlating life cycles of fungi and host, and understanding cyclic development of fungi. (SL)

Suggestions are provided for using animals (particularly snakes) as the focus of studies and activities in the science classroom. For example, cages with animals can serve as a learning center on various aspects of the animal. A list of suggestions for the care and feeding of snakes is provided. (JN)

Describes science activities related to Christmas and Thanksgiving, including identification of evergreen trees, tree shapes, pine cone and needle collections, edible decorations, and instructions for preparing bird food called "bird pudding." (SK)

Described is a praparium, a completely sealed and self-contained living aquarium. Steps on how to set up the aquarium, cautions, and a list of suggested aquarium plants and fish are included. (DS)

Describes the process of collecting and maintaining a culture of protozoa. Instructions are also given for constructing a micropipette for transfering small organisms. (SA)

Described are the perceptions of six past presidents of the National Association of Biology Teachers regarding the organization and its growth in the period from 1946 to 1965. These comments were taken from taped statements which are now in the organization's archives. (CW)

Presented is an activity that uses ground ivy to display different growth forms under different light intensities. Specimen preparation, materials, procedures, and probable results are discussed. Examples of graphs of the data are provided. (CW)

The habitat, life history, feeding, classification, anatomy and pearl production of the American oyster (Crassostrea virginica) are presented. A list of other oyster reef inhabitants and predators is provided. Harvest and habitat loss are discussed. (CW)

Reports on data gathered to determine the quantitative course requirements of undergraduate programs in various life science fields. (ZWH)

Describes a laboratory experiment on geometrical optics designed for life science majors in a noncalculus introductory physics course. The thin lens equation is used by the students to calculate the focal length of the lens necessary to correct a myopic condition in an optical bench simulation of a human eye. (Author/MLH)

Proposes method for determination of the pressure of a sphere by relating force and surface tension. (CP)

Previous research of classroom teaching and learning revealed that students have critical misconceptions about how plants get their food and that these misconceptions remain unchanged despite instruction using activities in the Science Curriculum Improvement Study (SCIIS) unit on producers. Because the experimental sequence described in SCIIS is…

Describes elementary school activities and questions which center on the life cycle of the woolly bear caterpillars. (MLH)