The artificial separation of mathematics and science is criticized as is the lack of program coordination and communication between teachers of these disciplines. (CP)

First purpose of this study was to investigate empirically the accuracy of prediction using regression weights selected through the use of variance-reduction procedures. (Author)

Examples, exercises, and solutions involving compound growth are contributed that emphasize the areas of lending, borrowing, and investing. It is felt these areas present a wealth of opportunities for mathematical modeling, the development of algorithms, and practical applications, and can be fully explored throughout typical secondary…

Mathematical modeling problems encountered in many disciplines are discussed in terms of the modeling process and applications of models. The models are classified according to three types of abstraction: continuous-space-continuous-time, discrete-space-continuous-time, and discrete-space-discrete-time. Limitations in different kinds of modeling…

Discusses numerical solution of the one-dimension Schrodinger equation. A PASCAL computer program for the Apple II which performs the calculations is available from the authors. Also discusses quantization and perturbation theory using microcomputers, indicating benefits of using the addition of a perturbation term to harmonic oscillator as an…

The teaching of time deals with two types of activities. The first is the concept of time, the second is telling time. Several types of learning situations are suggested under each of these activity areas. The use of teacher-made paper plate slit clocks is promoted. (MP)

This article considers the sum of a finite geometric series as applied to numeric data storage in the memory of an electronic digital computer. The presentation is viewed as relevant to programing in several languages and removes some of the mystique associated with syntax constraints that any language imposes. (MP)

A lesson for a sixth grade class that came out of an article in a Sunday newspaper is described. The instruction centered around an experiment in probability that was seen to provide an opportunity to add to pupil intuitive understanding of some basic notions. The lesson was viewed as worthwhile. (Author/MP)

A series of worksheets dealing with the Morse Code are presented. The material incorporates vocabulary knowledge, substitution, and patterns, and is viewed suitable for any student. The initial activities are followed by three optional challenges. Pupils can develop a basis for reflecting on mathematical symbols and words. (MP)

Offers an instructional approach to increase students' ability to employ mathematical operations as a means of physical measurement. (Author/JN)

The mathematical nature of the product barcode that now appears on many supermarket goods is discussed. Particular attention is given to the nature and formula of a "check digit" used to verify that product numbers are correctly scanned. Several possible student activities related to this code and others are suggested. (MP)

A discussion of the reasons for the new design of international standard typing paper (AY) with dimensions of 210 mm by 297 mm leads to a discussion of the ratio of the sides and geometric concepts involving similar rectangles. (MP)