Describes the use of magnets to simulate s, p, and d atomic orbitals from which a wide variety of molecular orbitals can be derived. The technique gives students an idea of molecular orbitals' shapes and stresses the importance of symmetry labels. (MLH)

Describes the construction of an amplifier and force transducer that can be used to demonstrate electrical activity in nerve and muscle using the gastrocnemius muscle and sciatic nerve of the frog. (MLH)

Discusses a theoretical model that uses a game as a base for studying processes of a stochastic nature, which involve chemical reactions, molecular systems, biological processes, cells, or people in a population. (MLH)

Introduces methods of studying fossil plants and of teaching palaeobotany. Brief accounts are given of different types of preservation and where to find specimens. An annotated bibliography is provided. (Author/SL)

Presents preliminary findings of results of tests of Piagetian cognitive development to predict success in introductory undergraduate physics courses. Grades were predicted with good success. (SL)

Described are the planning and execution of a project to record by color slides and video-tape recorders the pertinent learning experiences gained during field trips, so that the information can be made available during periods when it is not practical to repeat the field trips. (SL)

Listed, with comments and descriptions, are the addresses of suppliers of crystal and molecular models. Included are United States and English suppliers. (SL)

Presented are the results of an approach to teaching physical chemistry designed to increase student motivation. Student achievement in a course utilizing motivation variables such as self-pacing, no dropping of grades, no pop-tests, and taped lectures, indicated significant gains over a course taught by a traditional approach. (SL)

Discusses the philosophy and organization of an introductory college physics course that emphasizes laboratory experiments. Also presents a brief outline of the laboratory work. (MLH)

Describes an introductory laboratory physics course covering dynamics, fields, and waves. The course involves six hourrs of laboratory work and six hours of self-study every two weeks. Understanding concepts rather than laboratory techniques is stressed. (MLH)

Describes a laboratory teaching technique in which a single topic (in this case, bipolar junction transistors) is studied over a period of weeks under the supervision of one staff member, who also designs the laboratory work. (MLH)

The attitudes of 127 college students toward 30 different animals was assessed via a like/dislike questionnaire. Results indicated that female students disliked more animals than did males, and that non-Biology majors disliked more animals than did Biology majors. (SL)

Describes an experiment in which videotaping and classroom verbal rating systems were used to induce more higher level questioning by instructors in introductory physics laboratories. Concludes that teacher behavior can be modified or changed by setting instructional goals then receiving feedback. (MLH)

Discusses the formation, types, and climatic characteristics of deserts. Includes maps showing major deserts on every continent. (MLH)

Discusses efforts to determine the future of arid lands using climatic data of the past and present. (MLH)