Described are teaching methods used to teach measures of central tendency to middle and high school students. Discussed are quantitative and qualitative data, basic experimental terms, a general overview of data analysis, data charts for quantitative data, qualitative data analysis, and extensions for older students. (CW)

Described are two microscale chemistry laboratory experiments including "Microscale Syntheses of Heterocyclic Compounds," and "Microscale Acid-Base Extraction--A Colorful Introduction." Materials, procedures and probable results are discussed. (CW)

Describes a heuristic conceit, "the writer's stance," to help students overwhelmed by the complexity and possibilities of a writing task regain control of the process. Stresses the need for writers to select vantage points and frames of analysis for their academic writings. (SR)

Proposes that ethnography is a useful tool for helping teachers understand the cultural context of their students. Examines a high school writing lab, emphasizing the role of the tutor. Describes the experiences of the writing lab staff in learning the culture of adolescents through ethnography. (RS)

Presented is a technique for making various molecular models from a strip of paper. Instructions for six models including tetrahedral, trigonal bipyramid, octahedral, pentagonal bipyramid, and capped octahedron models are provided. (CW)

Presented is an activity designed to introduce introductory chemistry students to the standard reduction potential table. Included are lists of equipment and reagents, procedures, sample worksheets, and teaching directions. (CW)

Described is an activity based on a fictitious poisoning incident that is designed to challenge gifted and talented high school students. Discussed are the laboratory procedures, reagents, instrumentation, and results. (CW)

Introduced is a sandstone classification scheme intended for use with thin-sections and hand specimens. Detailed is a step-by-step classification scheme. A graphic presentation of the scheme is presented. This method is compared with other existing schemes. (CW)

Three activities involving electromagnetism are presented. Discussed are investigations involving the construction of an electromagnet, the effect of the number of turns of wire in the magnet, and the effect of the number of batteries in the circuit. Extension activities are suggested. (CW)

Presented is an activity designed to teach the use of the scientific method to non-science majors. Collecting, classification, and follow-up activities for a beach trip are discussed. Two simple dichotomous keys are included. (CW)

A procedure for extracting DNA from yeast using common reagents and equipment is given. Suggestions for variations are provided. A second activity for building a model of DNA from toothpicks is included. (CW)

A member of the original faculty of the experimental Ohio State University Laboratory High School reflects at a fiftieth reunion of the first graduating class. Students were used as guinea pigs to determine the effects of providing teenagers with liberating, interesting, and customized education from university faculty. (SM)

Reports the amended ethical principles of psychologists (June 2, 1989). The following principles are covered: (1) responsibility; (2) competence; (3) moral and legal standards; (4) public statements; (5) confidentiality; (6) welfare of the consumer; (7) professional relationships; (8) assessment techniques; (9) research with human participants;…

Describes the experiences of Rider College School of Business Administration in implementing the use of microcomputers for courses in the business curriculum. Topics discussed include student purchase of microcomputers; cost effectiveness; software considerations; security for student equipment; printers; large screen projection facilities; and…

Describes a computer program designed to enable undergraduate students to apply computer skills for data acquisition and processing in experimental chemistry. An example is given that examines the absorption spectra of conjugated molecules such as carbocyanine dyes, and the free electron model is explained. (six references) (LRW)