Various ways in which computers can be used in the classroom depending on the subject, students' background, and individual teaching style are discussed. A way to evaluate professional software packages for use in the classroom is included. (KR)

Presents five charts that compare data for elementary schools and secondary schools for (1) the average cost of paperback books, (2) the average cost of hardcover books, (3) the average cost of a periodical subscription, and (4) the index of inflation; plus (5) a chart that shows the average cost of hardbound textbooks. (LRW)

Describes a study of second graders that was conducted to investigate the use of microcomputer-based software to teach line graph production and interpretation. Abstract concepts between time and distance relationships are discussed, and transfer of skills to other types of graphs on paper are examined. (LRW)

When comparing performances across four versions of Computer as Lab Partner curriculum, increases in understanding were found when students predicted outcomes and reconciled results, and students used a heat-flow model of thermodynamics to integrate their experimental results. Argued is that curriculum must explicitly motivate students to…

Recounts a college economics professor's attempts to explain macroeconomic concepts to a blind student. Considers how explanations of economics principles often rely on graphic presentations. Describes experimental tactile adaptation, using graphs made out of sandpaper, yarn, spaghetti, and other materials. Recommends developing prefabricated…

Forming the matching variable for the Mantel-Haenszel differential item functioning (DIF) procedure through use of the total score as the matching variable (thin) and forming the matching variable by pooling total score levels (thick) were compared in a Monte Carlo study. Reasons thick matching is superior are discussed. (SLD)

Defines the mathematical concept of proportionality. Uses graphs of linear relationships to explore and make generalizations about the characteristics of proportional situations to help students critically evaluate problems involving proportions. (MDH)

A study of position announcements for collection development and management librarians found in "College and Research Library News" is reported. Data are presented on mean salaries, required skills and experiences, desired skills and experiences, and responsibilities. Areas for further research are suggested. (15 references) (EA)

Whether methadone maintenance treatment demonstrates cumulative (rehabilitative) or stabilizing effects on behavior of narcotics addicts over multiple treatment episodes was studied involving 993 addicts in a quasi-experimental design. Observed behavioral changes and longitudinal self-reports indicate stabilizing, but not cumulative, effects. (SLD)

Several types of physics activities that use real-world problems to motivate learners, use computers to assist in developing conceptual understandings, connect problem situations to mathematical models, and use the models to analyze other real-world problems are presented. The topics of racing sports, sailing, and damped harmonic oscillations are…

This critique discusses conceptual and practical issues raised in a paper by D. Marston (EC 210 837) on choosing the most technically adequate graph for measuring progress on individual education plans. The critique argues that the Standard Behavior Chart is a technically adequate and useful measurement tool. (JDD)

This article responds to a criticism (EC 231 964) of a paper that discusses graphs for measuring progress on individual education plans (EC 210 837). It notes that the type of chart used is not a major issue; the important point is that teachers repeatedly gather data on educationally relevant tasks and evaluate intervention effectiveness. (JDD)

Described is software which allows a student to use simulation to produce analytical output as well as graphical results. The results include a frequency histogram of a selected population distribution, a frequency histogram of the distribution of the sample means, and test the normality distributions of the sample means. (KR)

Presents a lesson in which students communicate verbally and in writing to create and describe geometric transformations, develop vocabulary, demonstrate ability to give unambiguous instructions to translate a triangle, form and test conjectures, and create extensions of problems. Includes reproducible student worksheets and questions for…

Reports on a survey of 631 colleges that investigated changes in library instruction and compared the results with previous LOEX (Library Orientation/Instruction Exchange) studies (1979, 1987). Provides data on size and type of institution, administration of instruction, types and methods of instruction (required, print, nonprint, methods used,…