Discusses the nature of term groupings, phrases, and text windows in full-text documents and computes the statistical significance of windows. Topics include classifying documents within disciplines or on a theory versus practice spectrum; and grammatical characteristics for automatic classification of documents, for information retrieval, and for…

Discusses the importance of identifying and describing the pattern by students in algebra class. Provides some examples showing the usefulness of the method seeing the pattern from mathematical materials. (YP)

Presents problems focusing on multiple representations of a function to develop students' ability to translate tabular, symbolic, and graphical representations. Indicates needed materials, objectives, prerequisites, directions, and answers. (YP)

Described is the history and characteristics of "A Programming Language (APL)." Discussed are how APL facilitates learning the concepts of variable and function and how to get started using APL. Listed are software for schools and 25 references. (Author/YP)

Investigated the effect of mathematics instruction with the aid of microcomputer illustrations on the achievement of college students enrolled in an intermediate algebra course. There was a treatment effect on the comprehensive final examination. (YP)

Describes a function graphing program's 15 Logo procedures and how they are used in the classroom to study the properties of functions and to develop visual imagery of function behavior. Presents several Logo programs. (Author/YP)

Discusses the application of probabilistic ideas, especially Monte Carlo simulation, to calculus. Describes some applications using the Monte Carlo method: Riemann sums; maximizing and minimizing a function; mean value theorems; and testing conjectures. (YP)

Describes activities for grade levels 8 to 10 to improve students' understanding of the concepts of variable, expression, domain, and roots of an equation. Includes materials, objects, procedures, answers, and worksheets. (YP)

The consistency with which students apply procedural rules for solving signed-number operations across identical items presented in different orders was examined in a study involving 161 eighth graders. Inconsistent rule application was common among students who had not mastered signed-number arithmetic operations. (TJH)

Shows that the ratio of the area of the quadrilateral formed by joining the kth points to the area of the original quadrilateral is constant whether it is convex or concave quadrilateral. Presents many geoboard or dot paper diagrams and geometrical expresssions. (YP)

Describes the definition and characteristics of a regular polyhedron, tessellation, and pseudopolyhedra with diagrams. Discusses the nature of simplex, hypercube, and cross-polytope in the fourth dimension and beyond. (YP)

This article shows the application of the ratio concept to the working of a 10-speed bicycle using a formula and tables. Two references are listed. (YP)

The approach taken by Virginia to analyze and establish policy for college and university administrator salaries, as they relate to other institutions and to the salaries of instructional faculty, is outlined. A methodology felt to be appropriate for this analysis, tested on eight institutions, is described and illustrated. (MSE)

Discusses solutions to the problem of maximizing the range of a projectile. Presents three references that solve the problem with and without the use of calculus. Offers a fourth solution suitable for introductory physics courses that relies more on trigonometry and the geometry of the problem. (MDH)

Discussion of expert systems and computerized adaptive tests describes two versions of EXSPRT, a new approach that combines uncertain inference in expert systems with sequential probability ratio test (SPRT) stopping rules. Results of two studies comparing EXSPRT to adaptive mastery testing based on item response theory and SPRT approaches are…