Discusses the teaching of mathematics to engineers in Italy. The four courses (usually taught during the first two years), the role of computers, and related ongoing activities (such as meetings and the suggestion of conducting mathematical research in an engineering environment) are described. (JN)

Properties of the arithmetic mean and the geometric mean are discussed, with an analogy between additive multiplicative averages. Drawing analogies between symbols and relations is proposed as a way of strengthening students' understanding and enriching the study of elementary statistics. (MNS)

This article investigates the algebraic structure formed when the process of finding the greatest common divisor and the least common multiple are considered as binary operations on selected subsets of positive integers. (DT)

The objectives for a general one-semester college course in mathematics are discussed. The content covered in looking at "traditional" mathematical systems, computers in society, and statistics from a consumer's viewpoint are briefly described. (DT)

Learning activities in statistics are described in which data about students in the class are collected and analyzed. (DT)

Directions are given for using a gravity protractor in constructing an instrument for finding derivatives. (DT)

The system of Gaussian integers is explained, and a new set of integers is derived. (DT)

Achievement on the final exam was the dependent variable in an experiment involving two college algebra classes. The experimental class was allowed retesting on unit tests while a control class took the unit test once. No significant differences were obtained. (JP)

Develops search patterns for locating an object which may be in one of several locations. (JP)

Two approaches are discussed for calculating the work necessary to pump water from a conical or parabolic container. The direct method derived from the definition of work is easy to misuse, as illustrated by a student's incorrect solution. (JP)

College students' responses to conditional syllogisms are used to analyze the students' interpretations of implication. Child's Logic'' was used much more frequently than Math Logic'' even after a one-semester course in logic. (JP)

In an introductory statistics course for social science freshmen, homework assignments were written on the blackboard by students at the beginning of each tutorial session and discussed by the class. This group obtained higher grades than a comparison group whose homework was collected and marked by the instructor. (MM)