A situation in which shoppers are waiting in supermarket check-out lines is simulated to determine an optimum number of check-outs using data on the number of shoppers and the serving time. (MN)

An example of a mathematical modeling problem involving student enrollment and attrition is given along with a discussion of methods and conclusions. (MN)

An example is given of a mathematical modeling problem involving the number of people that get on and off an elevator and the expected number of stops it makes. (MN)

The target point for the cue ball in a simplified game of billiards is computed through the use of line reflections and computations with complex numbers. (JT)

Discusses the principle elements for understanding and using mathematics, particularly arithmetic. Three aspects of arithmetic are considered: Understanding the concepts underlying a mathematical process, techniques or algorithms of arithmetic, and applications of the techniques to real situations. (SH)

The principles of modern genetics are extended to study the extinction probabilities of such genetic diseases as sickle-cell anemia, Tay-Sachs disease, and cystic fibrosis. (JT)

Brown's 1933 diagnostic test was used as a screening examination for 79 psychology students to determine their areas of weakness in statistical calculations, and to see whether the difficulties of a previous era have been changed by methods of teaching mathematics today. General similarities were found. (LBH)

The trend toward forcing early specialization on the part of the undergraduate mathematics student is questioned by the author in connection with its effect on inhibiting communication within the mathematics community itself as well as between it and those outside of it. A Mathematics Clinic, developed to broaden the student's scope of…

Considered are parallel and perpendicular relative velocities and their effect on the minimum time it takes a boat to cross a river. (Author/MA)

Described is the development of a simulation, or model of an existing congested pedestrian crossing situation by elementary school students in order to conduct trials of their solutions. (MN)

Analyzed are textbook word problems that are typically used as applications of mathematics and shows some of the difficulties in making these problems realistic. A discussion and examples of sources of genuine mathematical applications in real life follows. (MN)

Reviews the fundamentals of the equation of motion for the bicycle. (SL)

Three activities are provided for introducing career education into the mathematics classroom as well as the rationale for doing so. (JT)

Children between the ages of 10 and 13 were asked to write stories to accompany five computational problems. Stories were scored for suitability and it was found that students were most successful on subtraction and least successful on multiplication stories. Scores on this test correlated with mathematics achievement scores. (SD)

In response to an earlier article advocating the elimination of fractions from the curriculum, the author argues for their retention. He points out examples of their use in music and physic, and discusses methods of presenting operations on fractions. (SD)