Uses a graphing calculator to show examples of misrepresentations of periodic functions to help increase student interest and explore mathematical relationships. (MKR)

Reviews two software programs: "The Graph Club" which makes learning graphs "magical and exciting"; and "WiggleWorks," an "exciting" reading curriculum on CD-ROM. (SR)

Uses a brief fictional narrative to discuss how visual media frequently offer a superior alternative to prose for the communication of some kinds of information, specifically, to describe; represent abstract structures; convey spatial relationships; provide a meaningful context for unfamiliar information; assist readers in their attempts to solve…

Provides information for constructing two-dimensional performance graphs for students to assess their competencies and to diagnose difficulties in the important area of problem solving. (ASK)

Observes that the textbook explanation of the relationship between the international substitution effect and the downward slope of the aggregate demand curve is generally presented uncritically. Argues that the international substitution effect is sufficiently flawed and that it should be eliminated in teaching as a justification for the slope of…

Presents an activity that uses graphing calculators to duplicate the curves generated by a Spirograph, a design-generating drawing toy. (ASK)

Explains format, style rules, and lexicographic conventions that improve clarity and precision in a technical glossary. Discusses general rules, rules of style, rules of grammar and syntax, and rules for figures. Describes the computer display techniques and file management system used to develop such a glossary. (SR)

A medication efficacy graph was developed, revised, and applied in a case study to effectively monitor progress of a client with profound mental retardation and maladaptive behaviors. The graph enables clinicians to measure and display not just incidents of maladaptive behaviors but weighted maladaptive behaviors, adaptive behaviors, potency of…

Presents activities in which students are invited to re-create on their calculator screen images using graphical features of the graphing calculator. (ASK)

Addresses three issues of Calculator-based Ranger (CBR) activities on graphing abilities: (a) the effect of CBR activities on graphing abilities; (b) the extent to which prior knowledge about graphing skills affects graphing ability; and (c) the influence of instructional styles on students' graphing abilities. Indicates that CBR activities are…

Analyzed two children's use of a computer-based motion detector to make sense of symbolic expressions (Cartesian graphs). Found three themes: (1) tool perspectives, efforts to understand graphical responses to body motion; (2) fusion, emergent ways of talking and behaving that merge symbols and referents; and (3) graphical spaces, when changing…

Numerous scholars have applied conceptual graphs for explanatory purposes. This study devised the Remedial-Instruction Decisive path (RID path) algorithm for diagnosing individual student learning situation. This study focuses on conceptual graphs. According to the concepts learned by students and the weight values of relations among these…

Topics such as linear and nonlinear equations and inequalities, compound inequalities, linear and nonlinear absolute value equations and inequalities, rational equations and inequality are commonly found in college algebra and precalculus textbooks. What is common about these topics is the fact that their solutions and graphs lie in the real line…

This article describes an activity through which students collect data and explore ways to display them through graphs and charts. It also motivates various summary measures for location, spread and shape. Finally, it gives an introduction to concepts of validity, reliability and unbiasedness.

We start from the assumption that school mathematics knowledge could be better explained if social practices were considered to be generators of knowledge. This perspective changes the way we look at what school mathematics knowledge is and what it takes to teach and learn it. In this article, we will present a teaching situation about periodic…