Describes a series of science activities involving dissection and analysis of a sea necklace. (CP)

Provides demonstrations using digital display instruments of some of the mass and pH-related topics covered in first-year chemistry courses. (CP)

Describes a laboratory procedure which does not demand sophisticated equipment. (CP)

The relative effectiveness of two methods of instruction, orally-presented lessons and a written version of those lessons, was investigated using a post-test, an attitude scale, and time taken for instruction as criteria. (Author/RK)

In this section, brief contributed articles on a variety of secondary school science topics appear. (CP)

Suggests use of the planarian D. Dorotocephala, an animal 20 mm in size, in order to provide inexpensive lab experiences for students in large introductory psychology courses. The animal can be used to study perception, memory, behavior modification, and group processes. (Author/AV)

Provides a series of learning center activities which demonstrate concepts about air. (CP)

Reviews classroom teaching ideas including burning sugar cube experiments, science library reference materials, and growing salt crystals. (SL)

Presents experiments using wild birds as predators and pastry as prey and colored stones as background to demonstrate natural selection. Describes the exercise as an exercise in simulating natural selection. (Author/CW)

Outlines a laboratory exercise that makes use of Beer's Law plots of cysteine constructed at several pH values over a broad range of wavelengths to estimate the tautomeric ratio (R) of two singly charged ionic forms, calculate the microscopic constants, and construct ultraviolet spectra for both light absorbing species. (CW)

Determined student opinion of the investigative laboratory by surveying both students who had completed an introductory biology course using this format and another group of more advanced students who had taken other courses since this one. Results show that a majority of students feel the format improved their problem-solving skills. (JN)

Describes an approach to teaching Shakespeare's "King Lear" in which the teacher provides the students with a modern context/experience that forces them to evaluate their own feelings and actions. (HOD)

Describes a self-taught optical mineralogy course which uses eleven 40-60 minute color videocassettes. Laboratory exercises, instructional strategies, and development of graphical manipulation and display exercises are considered. Content of each tape is listed. (BC)

Discusses a high school laboratory in which the students take an active role in designing, implementing, and performing experiments concerning basic concepts in physics. (MLH)

The paper describes efforts to support the development of reflective practice at a basic school in Brno, the Czech Republic. The aims, structure, content and methods are mentioned, as well as some preliminary results. Also, the authors suggest a few preconditions of the success of possible future actions. The specific case is seen from the…