Two teachers describe ideas they have used in teaching the concept of area. The use of physical materials is emphasized. (MM)

This column contains brief notes on graphing in three dimensions; patterns in Pascal's triangle; plotting graphs by computer; and an application of the hypocycloid. (MM)

A collection of brief articles on mathematics and teaching mathematics. (FL)

Develops stochastic model of library borrowing using Negative Binomial distribution applied to circulation data obtained from Huddersfield Public Library. Evidence concerning process of popularity decay is presented and method is given by which relegation tests can be constructed to maintain optimum turnover. Eight references and statistical…

On these worksheets, students are to graph pairs of linear equations and linear combinations of these pairs, using the results to discover an algebraic technique for solving a system of epuations. They then complete, run, and modify a computer program for solving a system of linear equations. (MNS)

Discusses computer games (called intrinsic models) focusing on mathematics rather than on unrelated motivations (flashing lights or sounds). Games include "Green Globs," (equations/linear functions), "Darts"/"Torpedo" (fractions), "Escape" (graphing), and "Make-a-Monster" (equivalent fractions and…

An introductory unit on slope, designed to give students a chance to discover some of the basic relationships between functions and slopes, is described. Programs written in BASIC for PET microcomputers were used. It is felt that students have the background to understand derivatives after experiences with this unit. (MP)

The activity described helps students develop facility in working with two-dimensional coordinate systems. Many students find the activity fascinating, so it can be used to motivate students to become involved in a number of explorations and to engender positive attitudes toward mathematics. (MP)

Activities designed to: (1) provide experience in determining the likelihood of events and systematically recording the results of a succession of events; and (2) provide experiences in reading and drawing logical conclusions from graphed data are presented. Worksheet masters designed for duplication for classroom use are included. (MP)

A mathematical system based on six functions is illustrated. (MP)

The use of graph paper to outline arrays of multidigit multiplication problems is promoted. (MP)

How the use of calculators can illuminate mathematics and improve the level of problem-solving discussion in classes is presented. (MP)

The use of graphing skills in the science classroom is described, including prerequisite knowledge, bar graphs and histograms, line graphs, and interpreting line graphs. Graphing skills are utilized as a reinforcement for process skills activities such as data collection and data interpretation. (DS)

The use of graph paper is traced from its origins in research reports in the early 19th century to massive use in the early 1900s. Reflected in this report is the impact of "squared paper" on instructional practices and courses in technical, scientific, and mathematical areas. (MP)

Practical tips on the teaching of subtraction, addition and subtraction of fractions, and finding the vertex of a parabola are given. (MK)