An activity similar to magic squares is described. (SD)

A case is made for a comprehensive curriculum that includes strong competencies with not only number ideas and computation, but also with other mathematical topics such as geometry, statistics, probability, and estimation. (MP)

The objective of this activity is to provide a calculator experience developing and reinforcing the concept of order of operations. Three worksheets are provided that are suitable for reproduction for classroom use. Teacher instructions and answers are provided. (MP)

Explains that the use of symbols in some textbooks to represent both physical quantitites and numerical measures is illogical and confusing. (GA)

This discussion of the mathematical potential of classroom events gives many examples of incidents that can be used for learning about topics such as one-to-one correspondence, counting, sets, ordering, time, fractions, money, shape, estimation, measuring, volume, area, number operations, and graphs. (MP)

Activities for providing practice in estimating sums and products using calculators are presented. Worksheets are included. (MN)

Finding the sum of all n digit whole numbers that can be formed from an n digit whole number is proposed as a useful classroom activity. The problem leads from inductive method to deductive proof with the aid of pocket calculators, and provides an opportunity to introduce factorial notation and permutations. (MN)

A method is discussed for learning the multiplication tables that avoid repeating tables everyday or memorizing a large body of facts at the same time. (MN)

An activity that offers computational practice, pattern recognition, and the formulation of generalizations is described. (JT)

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

A computer program which produces a print-out of one million items is given in elementary Fortran. Observations of the print-out help students relate to such a large-number concept. (JT)

The authors illustrate the magnitude and application of the concept of a "googol" (ten raised to the one hundred power) in searching for entities that exist in such number. (MN)

A method for obtaining the least common multiple and the greatest common factor of a pair of numbers without using prime factorization is examined. (JT)

Many activities are described for teaching two fundamental concepts concerning one-half. These concepts are one-half of a number and one-half of the size. (JT)

Four worksheets are designed to provide practice with addition, subtraction, and multiplication of whole numbers and decimals. (JT)