Discusses the concept of integrating computers into the classroom curriculum and suggests that integration would be more successful if educators would wait for further developments. Topics discussed include lack of sufficient hardware; computer labs; and lack of effective preservice and inservice training programs for public school teachers. (six…

Discussed are general considerations for educating visually impaired students including planning, testing, lecture/discussion, field trips, and laboratory activities. Fourteen activities that have been adapted are described. One such undergraduate course is described. (CW)

Presented is an illustration of the use of a computer spreadsheet program, Microsoft Excel version 1.5, for solving complicated chemical problems. Examples of spreadsheet output are provided. (CW)

Reviewed is the discovery, nuclear and chemical properties, and uses of an isotope of Americium (Am-241). Production and separation techniques used in industry are emphasized. Processes are illustrated in flow sheets. (CW)

Describes a program in which second-year biology students use plasmid isolation to remove DNA from Escherichia coli bacteria and subsequently ligate and transform it into other E. coli bacteria. Cites ways teachers can get involved in current research that allows student participation. (RT)

Presented are two chemistry demonstrations: (1) an alternative method for the demonstration of the properties of alkali metals, water is added to small amounts of metal; (2) an exploration of the properties of hydrogen, helium, propane, and carbon dioxide using an open trough and candle. (MVL)

Fostering teachers' clinical reasoning as a reflection of their understanding of classrooms should be a central purpose of any modern teacher education program. This article presents a rationale for and description of a proposal for pre-student teaching laboratory experiences which utilize computer-based simulations to facilitate development of…

Describes research that used Importance-Performance Analysis to evaluate computer workshops offered in a university microcomputer laboratory for a continuing education program. A survey of workshop participants regarding attributes of computer laboratories is discussed, suggestions for computer instructors for adult education are offered, and…

Six major concepts of science are illustrated through the use of simple, easily equipped hands-on activities. Included in each activity are a list of materials, procedures, questions for students, and suggested discussion. Aquatic acoustics are highlighted. (CW)

Lichenometry is described for use in the study of biology and physical weathering. Discussed are lichens in general and an outline for studying growth and ecology. A problem solving format is used. (CW)

Reports on an investigation of a population of dandelions on a school lawn. Describes the objectives, rationale, study area, and the results of the study. Includes tables and graphs that show data collected. (RT)

This article describes how to set up a receiving station for information from satellites. Included are discussions of the benefits of using such technology and ideas for their application in biology classrooms and instructions for assembling the equipment needed to receive satellite transmissions from space. (CW)

Presents an experiment to demonstrate the degree to which environmental cations are taken up by susceptible lichen organisms in the field. Discusses the preparation of materials, procedures and typical results for this short laboratory exercise. (CW)

Describes a procedure for the growth of tobacco plants in flasks. Demonstrates plant tissue culture manipulation, totipotency, and plant regeneration in approximately 12 weeks. Discusses methods, materials, and expected results. (CW)

Shows the difficulties of understanding the hypothesis a posteriori. Describes a scientific method containing phenomenologic, hypothetic, and theoretic phases. Provides the results of an experiment on simple pendulum oscillation by using this method. (YP)