An investigative activity dealing with where to pitch a tent at a campsite is described. (MNS)

Presented are solutions to variations of a combinatorics problem from a recent International Mathematics Olympiad. In particular, the matrix algebra solution illustrates an interaction among the undergraduate areas of geometry, combinatorics, linear algebra, and group theory. (JJK)

A method of using vector analysis is presented that is an application of calculus that helps to find the best angle for tacking a boat into the wind. While the discussion is theoretical, it is seen as a good illustration of mathematical investigation of a given situation. (MP)

Presents a mathematics problem involving speed of a walking student versus speed of light reflection in a high school hallway. (MKR)

Describes some real-life problem situations and the mathematical applications used to solve the situations in order to promote an inquiring and problem-posing approach. (MKR)

Least-squares line fitting is developed without calculus. Its rationale and an example with consumption patterns are provided. (MNS)

Contains explanations and examples of mathematical calculations for a secondary level course on personal finance. How to calculate total monetary cost of an item, monthly payments, different types of interest, annual percentage rates, and unit pricing is explained. (RM)

The article presents and discusses an optimization problem concerned with observing objects from a moving car. (MK)

This book provides a collection of 191 mathematical problems aimed at the advanced high school student level and above. Problems cover general mathematical areas including plane geometry, three-dimensional geometry, number theory, algebra, combinatorics and graph theory, and a number of miscellaneous questions that combine mathematical…

Methods of determining probabilities of various outcomes of the game Yahtzee are described. (SD)

Problem solving is presented as a resource for creating curriculum through reflections on intuition such as: exploring available intuitions, making explicit the intuitions used, and using intuition to generalize. (MP)

Computer graphics are used to display the sum of the first few terms of the series solution for the problem of the vibrating string frequently discussed in introductory courses on differential equations. (MNS)

Procedures to help algebra students solve problems more efficiently are discussed, using linear programing graphs. (MNS)

A sample mathematical application problem that can be solved with computer programing is discussed. (MP)

A computer program that uses determinants to solve simultaneous systems of equations is presented. The purpose is to show teachers how to use topics from algebra, geometry, and programing to lead pupils to appreciate the beauty and unity of mathematics. (MP)