A method for approximating the nth root of any positive number that requires only a four-function calculator with a square-root key and repeat multiplication capability is given. (MN)

Three biorhythm cycles affecting behavior are discussed and graphed by using basic mathematical operations along with simple graphing techniques. (JT)

The topics discussed are, "Helping Students Understand the Distributive Property,""Converting from Base 10: Nonintegral Bases?,""Rapid Mental Squaring of Mixed Numbers," and "Some Nonstandard Binary Operations and their Properties." (JT)

The use of trigonometry in making astronomical calculations prior to the invention of logarithms is discussed. (JT)

Ten problems involving large calculations are described for classroom use with a calculator. (JT)

An activity involving totaling bills, completing checks and check stubs, and determining bank balances is described. (JT)

A mathematical game that reinforces basic multiplication facts, strengthens concepts of factors and multiples, and also provides arithmetic drill is described. Four variations of the game are also provided. (JT)

Two games are described. "Operation: Four" is a game which provides students with practice in basic computation. "Geometry" is a game which enables students to participate in a competitive match of definitions. (JT)

The opportunity for students to develop formulas that involve tangent lines to a circle and the Pythagorean Theorem and to use approximation and common sense is provided in a suggested distance-to-horizon problem. (MN)

A motivational game providing practice in computing and problem solving is described. (JT)

A unique magic hexagon, which can be used to help improve students' computational skills, is presented. (JT)

Presents number tricks appropriate for use in workshops, mathematics clubs or at other times when stressing recreational mathematics. (PK)

Presents three traditional problems from discrete mathematics with alternative solutions and discussion of those solutions. (PK)

The general combinatorial problem of counting the number of regions into which the interior of a circle is divided by a family of lines is considered. A general formula is developed and its use is illustrated in two situations. (PK)

Practical tips are presented for teaching concepts related to percentage and the integration of powers of "e." (PK)