Presents a laboratory exercise suitable for advanced placement biology or chemistry classes. Discusses the theoretical approach, preparation and standardization of reagents, and results. Emphasizes standard analytical procedure and chelometric titration. (CW)

Describes an experiment designed to use the ability of duckweed to convert the secondary hydroxyl moieties into ketone groups. Discusses the preparation of plant material, materials, procedures, and results for this biotransformation experiment for undergraduate students. (CW)

Outlines procedures for developing a microcomputer laboratory for use by students in an academic organization, based on experiences at Niagara University. The four phases described include: (1) needs assessment; (2) establishment, including software and hardware selection and physical facilities; (3) operation, including staffing, maintenance,…

Described is the separation of dyes using a conventional liquid chromatographic pump and a glass column. Included are the preparation of the column and dye separations. (CW)

Discusses three types of sensors; pressure, gas detection, and relative humidity. Explains their use for laboratory measurements of gas pressure and detection of specific gaseous species. Shows diagrams of devices and circuits along with examples and applications including microcomputer interfacing. (RT)

Describes study designed to investigate students' attitudes and strategies when writing with the aid of a computer. Interviews with four undergraduates enrolled in a computer-assisted section of advanced composition are discussed, and participant observation and document analysis are also used to examine the combined processes of composing and…

Discusses how problem-solving networks can be incorporated into courses. Reports on the development of a new style of pictorial network that can assist students in the handling of experimental data. (CW)

Describes experiments designed to measure the oxygen content in the atmosphere and related areas in the high school laboratories. Considers the application of these activities to other programs. Includes a description of the binuclear complex and recommended procedures. (CW)

Describes an experiment for undergraduate chemistry laboratories involving a chemical found in plants and some sea animals. Discusses collection and identification of material, a hemolysis test, preparation of blood-coated agar plates, and application of samples. (CW)

A survey of college students' attitudes toward use of the language laboratory found that an initial positive attitude toward the laboratory in the first semester becomes more negative during the second semester, suggesting that new instructional materials are needed to maintain the initial favorable attitude toward the laboratory. (CB)

Described are the Howard Hughes Medical Institute programs for providing funds to assist science education. One program is designed to assist private liberal arts colleges that are not affiliated with a graduate school. Other programs have been established to provide support for postdoctoral research and laboratories. (RH)

Eighth grade physical science students studied graphing with a microcomputer as the lab partner in a microcomputer based laboratory. Graph templates were used to solve problems based on previous learning. It was concluded that the Computer as Lab Partner curriculum was effective in teaching graphing concepts. (GDC)

Describes an experiment designed to give accurate values for both the absolute zero of temperature and the gas constant using very simple apparatus. (TW)

Discussion of local area networks (LAN) includes use in elementary and secondary education and in higher education. Topics addressed include cost of software, instructional advantages, administrative considerations, effective use of computer labs, and computing capacity of microcomputer workstations. A list of LAN vendors and their products is…

Describes a program in which senior engineering students are given the opportunity to design, make, and test apparatus intended for an upper-level teaching laboratory. Discusses such projects as a vapor compressor test stand with refrigerant mass flow measurement, a double-walled concentric annular heat pipe, and a vacuum filling station. (TW)