Fifty-six teachers of students with moderate/profound disabilities viewed task analytic data in one of three forms: graphed, ungraphed, or both. The data's form did not produce different teacher judgments of student progress or different program recommendations. Three factors (trend, variability, and frequency of data collection) had significant…

Presented is a simple method which may be used to determine points of intersection in graphs of functions if they do exist. Several examples are given with illustrations of the functions. (CW)

Argues that the only reason to ask students to plot graphs manually should be to have them learn the skill of plotting graphs manually. For data-analysis purposes, the use of computer-generated graphs has several advantages and few disadvantages over manual plotting. (Author/WRM)

Used a phenomenographic approach to reveal the qualitatively different ways in which 40 students in Hong Kong (China) primary and secondary schools experience and understand the phenomenon of graphic representations of quantitative data. Describes an outcome space depicting four variations of children's understanding. (Author/SLD)

Describes a process of data collection with young children using the outdoors as a mathematical context. The process of data collection and processing introduces children to more abstract mathematics as they sort and classify data, create graphs, compare datasets, examine patterns, and interpret graphical representations. (ASK)

Presents simple experiments using the flow of water from bell jars that can provide an easily visualized introduction to exponential decay. (Author)

This mathematics activity for K-3 students has students plant and measure the growth of bulbs. The activity teaches them to measure, collect, and graph data. The article presents a list of materials needed, instructions for creating a chart, and sample discussion questions. (SM)

Investigates pupils' abilities to interpret graphical information using a comparative study involving data-logging, conventional practical work, and a nonpractical equivalent. Concludes that the computer-based approach seemed to be particularly effective for younger and less-abled pupils. (Author/ASK)

Introduces a method for constructing phylogenies using molecular traits and elementary graph theory. Discusses analyzing molecular data and using weighted graphs, minimum-weight spanning trees, and rooted cube phylogenies to display the data. (DDR)

Microanalyzes graph use in lectures drawn from artifacts compiled from videotaping all lectures and seminars in a 13-week ecology course. Focuses on both the text and the gesture-related references made in the reading of a graph in an ecology lecture. Contains 36 references. (DDR)

The symbolic graphic life-line was used with clients (N=50) in short- or long-term group therapy programs. Information expressed through the life-lines helped to integrate the clients' feelings and thoughts in relation to past events, and aided therapists in devising treatment goals. (MKA)

Draws on information in the Modern Language Association database to identify changes through time in registration levels and the percentage of institutions that offer various languages and language clusters and discusses trends within groups that differ by several institutional characteristics. (nine references) (CK)

A trilinear chart for understanding the distribution of achievement levels of students' performance in the National Assessment of Educational Progress (NAEP) is described and its use illustrated with data from the 1992 state NAEP mathematics assessment. Trends for all 44 participating jurisdictions are simultaneously displayed. (SLD)

Discusses how experiments can offer students different points of view on the mathematical concepts presented in class and bring these concepts to life. Presents an experiment that demonstrates the interaction between mathematics and fluid dynamics. (Author/ASK)

A project developed and evaluated an intermediate form of presentation that provides a virtual dynamic tactile display for use with computers that could complement static tactile displays of graphical material. The device is a two-dimensional extension of the tactile mouse and provides contour and slope information to the user. (Contains nine…