A method for converting francs to dollars and dollars to francs is shown to involve the harmonic mean. (MP)

The uses of geometry in everyday life, in various professions, and in other areas of study are discussed. The role of geometry courses in high schools and elementary schools is summarized. (MP)

A formula for predicting population, given past data, is presented. Decade census reports for the United States are used to analyze problems that might occur in prediction. (MP)

Reviews a current book on mathematics for the biologist. Includes a discussion of the general topic and a listing of previous books on mathematics for the life sciences. (MA)

Some applications of the theory of games to competitive situations are examined by looking at several examples, including a military problem, a political problem, and a prisoner's dilemma. (MP)

A proof is given that in the purchase price, sales tax followed by discount is the same as discount followed by sales tax. (MP)

A comparison of four methods of finding the maturity value of the principal is presented. The four methods are: table, period-by-period iterative calculation, formula, and Binomial Theorem. (MP)

Discusses ways of teaching the mole concept in high school chemistry classes. Provides resource information on the mole and Avogadro's Number. Includes an explanation of four methods for measuring Avogadro's Number and instructions on how to use the mole. (MA)

The calculator is used to solve certain formidable equations, which arise naturally and which may be difficult or impossible to solve by standard methods, by a method of successive approximations. (MP)

Practical decisions involving fuel economy are shown to require important skills from secondary school algebra and analysis. (MP)

Infinite geometric series are related to the time-motion paradox involving a football team advancing halfway to a goal line on each successive play. (MN)

Discusses an introductory chemical engineering course in which mathematical models are used to analyze experimental data. Concepts illustrated include dimensional analysis, scaleup, heat transfer, and energy conservation. (MLH)

Elementary differential calculus is used to analyze and to discuss some complex economic situations. (JT)

The author uses mathematical models that involve only algebra and a few basic ideas in discrete probability to describe the frequency of conception in large human societies. A number of calculations which can be done by students as exercises are given. (MN)

Some one dimensional search procedures for finding optimal solutions to a unimodal function are explored. (MN)