A set of square counters is described as a simple way to introduce new concepts and as a concrete way for students to learn. (MP)

Described is a case in which a young student stumbles upon the "integer" technique for subtraction which differs from the techniques of decomposition and equal addition. (MN)

The method described here converts a given problem in a base other than ten to a related problem in base ten, solves the related problem in base ten, and converts the answer back to the original base. Limitations are discussed. (MP)

A straight forward process for working in fractions on any calculator is presented. The method involves converting a decimal back into a fraction in its lowest terms. (MN)

Observations of students working with subtraction and division are reported. The instructional situation and goals of the teacher are discussed. (SD)

The author gives a method for involving students in developing and verifying elementary number theory hypotheses by studying areas and perimeters of primitive pythagorean triangles. (MN)

Characteristics of the number seven, which relate to many different areas of mathematics, are discussed. (JT)

A successful method for teaching place value is described. (JT)

The concept of even and odd integers is explored through the use of fractions. (JT)

Part two of an article discussing the selection and use of instructional materials for teaching the metric system to both children and adults. (JH)

Guidelines for teachers to better use manipulatives in the teaching of mathematics to learning disabled learners are offered including a rationale for manipulatives, selection crteria, principles underlying productive use of manipulatives, and making the transition from the concrete to the symbolic. Suggested materials and distributors are listed.…

The article offers an interpretation of "specially designed instruction" in arithmetic computation for learning disabled students which challenges overreliance on paper-and-pencil methodologies, rule-oriented procedures, and traditional sequences. Long division is used as an example of developing conceptual understanding to undergird computation.…

An application of spreadsheets, not specific to any particular spreadsheet, is provided. It provides an exploration involving numbers in the form of 3x3 magic squares and 3x3 magic cubes. Strategies for their use are noted. (MNS)

Discussed are the results of interviews with 63 Australian children (interviewed in English) and 62 Nigerian children (62 interviewed in English and 60 interviewed in Yoruba) to determine how they used number concepts in discussing five demonstrations manipulating physical matter. Differences between the two groups are considered. (RH)

A review of literature and research of some linguistic theories illustrates how gender neutralization in absolute numbers in Hebrew and Lebanese Arabic can more appropriately be accounted for by the rhythmic characteristics of the numeral set as recited in sequence. (CB)