Describes interfacing a hand-held oxygen probe with a microcomputer and suggests experiments for undergraduate chemistry courses that could facilitate student understanding of aquatic environmental processes which involve dissolved oxygen. Data can be analyzed through the program or exported into other software. Presents results of an experiment…

End users think of file names as a way to identify file contents, whereas computer programs often assign special meaning to file extensions. This article discusses different kinds of files on the World Wide Web: text, document, sound, video, and multimedia; file compression; and encoding formats. Includes a chart of file formats and lists Web…

Introduces five articles in a special journal issue devoted to research about, design of, and use of multimodal interfaces. Article highlights include: algebra instruction; presentation of data summaries; interaction with complex spatial displays (maps); access to computing for the visually impaired; and design for portable devices for use in…

Discussion of personal bibliographic systems (PBS) that manage the input, storage, retrieval, and output of bibliographic references focuses on low-cost mainstream bibliographic software for personal use or smaller libraries. Structural flexibility, indexes, printing and downloading, searching, and interface- and management-related issues are…

This paper reports on a project started in 1993 to provide preservice teachers with opportunities to engage in an extended conversation with a middle school student using a computer and a modem. The Apple Computer Co. donated the initial equipment to the College of Education at Wayne State University and to the Detroit Open School, Detroit Public…

Described is an activity in which a computer is used to acquire temperature and humidity data useful in investigating transpiration in plants. Materials and procedures are discussed and examples of results are presented. Factors which influence the rate of transpiration are discussed. (CW)

Examines the following essential skills for a successful electronic performance support systems design: (1) the ability to understand and assess human performance needs; (2) open-mindedness; (3) solid design skills; (4) human-computer interface design skills; (5) team leadership skills; and (6) microcomputer application design skills. (AEF)

Explains the use of the microcomputer as a multipurpose analytical instrument which frees students from the mechanics of science and allows for more active learning involvement. Provides the typical data acquisition configuration, advantages, disadvantages, and a brief summary. (RT)

Described is a means of logging data from remote sensors in data files and then transferring the data to a spreadsheet for processing. The presentation of the data in tabular or graphical form is discussed. An example using temperature data from a model house is provided. (Author/CW)