A programing approach is described, using numerical methods to draw implicit functions, without solving the relationships explicitly. Several examples are discussed, with programs and printouts included. (MNS)

Utilizing 11 years of University of Saskatchewan circulation transactions, it is shown that P. M. Morse's Markov model of book use fits approximately 99 percent of data for whole collection and for three subject areas; contrary to his assumptions, one of the model's parameters is time dependent. Thirteen references are included. (EJS)

Brief articles are included on creating in first-year algebra, making a Moebius hat, and graphing cubics. (MNS)

Discussion of rush library processing (rapid provision of books that are urgently needed) highlights speed versus cost, previous studies, and a study conducted at Clemson University Library to determine rush book turnaround time. Seven guidelines applicable primarily to academic libraries are suggested as aids to improve rush processing. (9…

Discusses three phases of instructional design (ID)--definition of instructional parameters, analysis and synthesis of instructional alternatives, and implementation of instructional plan--and presents a 15-step ID model. Included for each step are a descriptive name, boxed example, and rationale and (as applicable) current state of technology for…

The pre-math computer program for preschool children that is described is divided into subprograms representing different basic numerical concepts--discrimination, recognition, and recall--and presents research design used to test the program's effectiveness with Head Start preschool children. Results indicate the program was ineffective…

Online seaches of sample topics in the area of forensic medicine were conducted in the following life science databases: Biosis Previews, Excerpta Medica, Medline, Scisearch, and Chemical Abstracts Search. Search outputs analyzed according to criteria of recall, uniqueness, overlap, and utility reveal the need for a cross-database approach to…

This study reports the cognitive processing of a Year 8 female student (Kerri) during a test, and during her subsequent homework as she consolidated as part of abstracting; a topic of recent research interest. This case adds to the body of knowledge about how constructing and consolidating can occur simultaneously. The analysis captured the…

This book contains an interactive calculator and worksheet program designed to teach the graphing of some of the functions that appear in high school mathematics courses. The graphs of linear, exponential, and logarithmic functions are explored as well as other functions. Activities focus on the graph that appears as a standard part of algebra…

The Rivers Project at Southern Illinois University began in February, 1990 as a pilot program involving eight high schools along the Mississippi and lower Illinois River. The Rivers Project network has grown through the training of teachers from across the United States and Canada. With scientific literacy as the ultimate goal, students collect…

"My Learning Curve" is a visual rapid appraisal technique that was developed in Canada for exploratory use in one of a series of loosely coupled evaluation studies of a redesigned teacher education plan. It is designed to allow teacher candidates enrolled in the program to depict quickly and visually, rather than verbally, their…

Research supported in part by grant MH-07346 from the National Institute of Mental Health, and a grant from the Illinois State Department of Mental Health.

Discusses trade-off analysis, a data collection method with conjoint measurement technique in which respondents rank order a matrix of pairs of levels of specific attributes, and gives examples for use in determining library users' perceptions of relative utility of completeness of information versus cost of a search. Twelve sources are cited.…

Presents new evidence to show that nuclear radiation is associated with impaired cognitive functions. Links changing levels of radiation from U.S. nuclear bomb testing to the long decline--and now the beginnings of a rise--in Scholastic Aptitude Test scores. (Author/RW)