An alternative approach is described for presenting the idea of the derivative through the use of chords of a graph. (MP)

The five mathematics problems to be solved by high school students participating in the Fifth U.S.A. Mathematical Olympiad are given. (DT)

Equations for the conic sections are given, and properties of the conics are discussed. The contributions of Greek mathematicians are reviewed. (DT)

A method is described for teaching secondary school mathematics students about the harmonic mean. (DT)

A method is discussed for justifying to students the fact that the product of two negative integers is positive. (DT)

A method is given for generalizing Pascal's triangle to three dimensions. (DT)

Some of the questions used on a test covering concepts of graphing are presented, along with a selection of students' comments and percentages of students making given responses. (DT)

Methods are suggested for encouraging high school students to write mathematics research papers. Sources for information are discussed, a general outline for the paper is given, grading procedures are described, and several topics for reports are listed. (DT)

A geometric approach to the solution of quadratic equations and more general polynomials is based on finding points with minimum distance from the x-axis. The approach is useful in motivating the definition of complex numbers. (SD)

A survey of Pennsylvania secondary schools showed that relatively few (15 percent) schools offered probability and statistics regularly as a complete course and of those which did, the course was elected primarily by seniors. Reasons for the lack of offerings are analyzed. (DT)

Presents an activity that illustrates how data stored in a matrix or list can be plotted as a graph in the parameter plotting mode on graphic calculators. (ASK)

Presents an activity on soap-bubble geometry using a guessing contest, explanations, and demonstrations that allow students to mesh observation and mathematical reasoning to discover that mathematics is much more than just number crunching. (ASK)

Computers were successfully integrated into the mathematics program of fifth and sixth graders, with a special emphasis placed on learning to develop computer programs in order to develop skills in math problem solving. Such experience with computers can aid in the early attainment of advanced mathematical concepts. (Author/PB)

Described is an activity demonstrating how a scientific calculator can be used in a mathematics classroom to introduce new content while studying a conventional topic. Examples of reading and writing large numbers, and reading hidden results are provided. (YP)

A beginning solution and generalization are given to a problem on area and perimeter presented in a previous article. Various figures are used to illustrate how posing problems and identifying increasingly general methods promotes problem-solving maturity. (MNS)