This simple example demonstrates the physical significance of similarity solutions and the utility of dimensional and asymptotic analysis of partial differential equations. A procedure to determine the existence of similarity solutions is proposed and subsequently applied to transient constant-flux heat transfer. Short-time expressions follow from…

Presents simple and inexpensive demonstrations of properties of metallic glasses. (SL)

Discusses the rationale for and use of minilabs (requiring from 15 to 90 minutes to complete) for freshmen chemistry experiments. Provides several examples, advantages for students and instructors, and results of a questionnaire evaluation completed by 83 students. (JN)

This article offers ideas and activities to help develop a multidisciplinary unit that motivates students to learn about the languages, legends, and lifestyles of Native Americans. (DF)

Describes an introductory laboratory format (used for 12 years at Colorado College) that involves students in the design and exploration phases of experiments. The laboratory features include choices of experiments; clearly explained goals; student selection of methods; wise equipment use; check-out procedures with instructor questions; and no…

Suggests recording student science experiments on videotape for class analysis. Analysis includes examining the experiment's purpose, its components, and students' techniques in performing it. Furnishing students with a checklist of things to look for while viewing experiments is recommended. (Author/JN)

Presents demonstrations, using microprocessors, to show the slow change in relative phase of two sine waves feeding the inputs of an oscilloscope and Fourier synthesis. (SK)

Describes a simple demonstration that illustrates the nature of isotropic substances by tearing newsprint, magazines, and wrapping paper. (BT)

Describes an approach for making chemistry relevant to everyday life. Involves the study of kinetics using the decomposition of hydrogen peroxide by vegetable juices. Allows students to design and carry out experiments and then draw conclusions from their results. (JRH)

This article gives examples of science teaching for gifted students from the Young Persons' Institute for the Promotion of Art and Science in Tel Aviv (Israel). Emphasis is on fostering curiosity and experimentation. Examples are offered in teaching about the weather, water, and light and color. A model experiment to teach electricity principles…

Describes a technique for extracting a radioactive source from the atmosphere using a balloon, as a strategy to generate students' enthusiasm for and understanding of radioactivity experiments. (JRH)

Compares and contrasts the use of animals in English secondary schools and Australian high schools. Changes in animal usage in English schools over the last decade are described as are the influences that the National Curriculum in England has had on such work. Implications are indicated for Australian and English biology teachers. (Author/MKR)

Students often complain that lectures requiring simultaneous writing and listening is a difficult task. An alternative method is provided to teachers to facilitate note taking by students. (ZWH)