This study investigated the effects on student understanding of linear relationships using the linked representation software VideoPoint as compared to using semi-linked representation software. It investigated students' attitudes towards and preferences for mathematical representations--equations, tables, or graphs. An Algebra I class was divided…

Presents statistics from 1978 survey of public library patrons concerning relationship between distance and library usage and compares them with results from 1968 survey. Data for branch libraries showing effects of age, education, and mode of transportation used are discussed, and three specific contexts are examined. Seven sources are cited.…

Experiences with complex numbers and graphical representations of them are discussed, with a program for a microcomputer. (MNS)

Described are computer assisted instruction exercises designed by a college professor to help undergraduate psychology students acquire fundamental skills in data collection--recording the data, using tables and graphs, and recognizing functional relationships. (RM)

Researchers presented 43 administrators at a large midwestern university with 22 hypothetical organizational problems in which authority was absent or unclear, to test models of the effects of contextual factors on insiders' and outsiders' decisions to participate in organizational "political" issues. The results led to revisions of the models.…

A historical study of three school administrative services--school health, psychology, and curriculum--in 30 California school districts during 1930-1970 used an institutional environment approach to find that balance among institutions and agencies governing school systems, not organizational size, led to greater diffusion and retention of the…

Twelve Colorado school districts changed to a four-day week during the 1980-81 school year. This article discusses the advantages of the move and offers some cautions. (Author/WD)

A sequence of seven graphing activities is suggested for developing both prenumeration and numeration concepts and skills. (MP)

The need for development of a curriculum that provides vertical links between earlier and later work and horizontal links with other topics in mathematics and other subjects is promoted. Much of the material describes explorations of circles and cones suitable for many levels. (MP)

Explains and demonstrates time-series statistical analyses with a case example. Argues graphs and nonparometrical statistical analyses are not valid methods for evaluating behavior change due to counseling. Suggests the use of time-series statistical analyses enables counselors to employ a reliable method of measuring change in counseling…

Results of the National Assessment of Educational Progress related to student ability to use information from graphs and charts is discussed. (MP) Aspect of National Assessment (NAEP) dealt with in this document: Results (Interpretation).

Describes an experimental study in which two sections of calculus were taught using the same materials, except one section was enhanced with the computer algebra system Mathematica. Results indicated that the students in the technology group had advantages to understanding certain key topics in calculus such as limits, derivatives, and curve…

Reports on the case study of a high school student using a computer-based tool called the Contour Analyzer to create graphs of height versus distance and slope versus distance for a flat board positioned with different slants and orientations. Focuses on visually recognizing the mathematical behavior of the slope versus distance function which…

Discusses the process of learning to construct and interpret representations from a social practice perspective. If students need to construct tables and graphs to complete a project report in mathematics or science, they can learn to consider whether these forms are effective at communicating important information. If students merely complete…

Describes an algebra course organized around the concept of function and based on intensive use of technology. Includes an explanation of the assessment sequence used to explore students' use of familiar representations and procedures to reason logically and to solve and communicate about unfamiliar tasks. (DDR)