It is felt teachers can adopt techniques of magicians to mathematics instruction whenever it seems appropriate. Ideas for a unit on the properties of odd and even integers are presented for teachers who enjoy some theatrics in the classroom. The goal is to teach mathematical ideas underlying magic tricks. (MP)

A mathematical system based on six functions is illustrated. (MP)

Activity sheets and gameboards for basic addition and subtraction practice, regrouping, and estimating are presented. (MP)

Geometric construction problems are recommended as sources of stimulating exercises for mathematics classes. (MP)

A mathematics course using programmable calculators, which was part of a summer enrichment program for upper elementary and junior high students, is described. (MK)

The instruction of BASIC programing to gifted and other interested pupils from fifth through eighth grades in Tempe, Arizona is described. Sample assignments and major recommendations for people planning to begin BASIC programing courses for elementary students are featured. (MP)

The Concept Game, which focuses on the attributes of parity, balance, majority, closure, and skip of seven-digit binary numbers, is described. Originally written as a computer program, the game is modified so that pupils can play with construction paper chips of just paper and pencil. (MP)

An unusual way of using the long multiplication algorithm to solve problems is presented. It is conceptually harder, since it involves negative numbers but is easier to perform once mastered, since the size of the multiplication table required is smaller than the standard one. (MP)

The use of the hand-held calculator for introducing geometric growth is illustrated. The activity is designed for secondary school mathematics students. (MP)

A game designed to introduce aspects of coordinate geometry is reviewed. This game situation can be used to improve intellectual development with: the concept of mapping, the objectivation of operation systems, the verification of hypotheses, and organization principles. (MP)

Tesselations and n-dimensional geometry problems are reviewed. The author discusses possible models which could be used to approach and understand these special aspects of geometry. (MP)

Multiple examples of the mathematics involved in photography are given. (MP)

The reactions of a group of Australian high school girls to playing the educational game "Equations" were gauged by a questionnaire and a standardized mathematics test. Attitudes were positive and some achievement gain was found. (MP)

The results of the interaction of fifth- and sixth-grade students with a computer are described. (MK)

An interschool, team mathematics competition conducted by a junior high school mathematics department is described. The competition is intended to help provide a total mathematics program, to develop well-rounded mathematics students, and to generate enthusiasm among able students. (MK)