Presents a class demonstration that shows the exchange of gases that occurs when a green plant is placed in the light. Develops an important concept related to the understanding of photosynthesis and brings an historical perspective to biology teaching. (JRH)

The value of the genus Nematodius in teaching is not widely realized. Presented is a brief biological outline of the organism (including geographical distribution and reproductive cycle/behavior) and its use in student investigation of selective predation. (Author/JN)

Describes resources for teaching about dinosaurs. These include audiovisual aids (models, posters, jigsaw puzzles, filmstrips, 35mm slides, resource pack, worksheets, templates, tracing sheets, and films/video materials), books (for young and older students), and exhibits. Includes sources for all materials described. (JN)

Differences between games, simulations, and case studies are identified. The values of these approaches are considered and examples of particular uses within a biological context are discussed. Lists of commercially available materials and articles on biological games are provided in appendices. (Author/JN)