Computational estimation is viewed as perhaps the most neglected skill area in the mathematics curriculum. Results of interviews led to the formulation of a model of the common characteristics of good estimators. The hope is expressed that the key processes and strategies identified in the investigation will be studied carefully. (MP)

The arithmetic portion of the Tennessee Eighth Grade Basic Skills Test is examined. A stratified sample of elementary teachers in Tennessee was used in the investigation. Data available suggest that unsatisfactory scores obtained by some students on the test do not come from teachers' failures to teach the subject. (MP)

Describes the Minnesota Talented Youth Mathematics Project for junior high school students in terms of participant selection, curriculum, teacher selection, course grades and credits, and outcomes of the project. (DS)

Described is a reporting procedure used by the mathematics department at the University of Arizona to give in-state high schools information about the performance of their graduates. The report provides specific information in a fashion that helps each school evaluate its own mathematics program. (MP)

Drill activities for addition, subtraction, multiplication, and division that are derived from the history of mathematics are suggested. (MK)

A brief description and analysis of mathematics education in different phases of the history of Mozambique are provided. Particular attention is given to teacher training and the first National Seminar on the Teaching of Mathematics. (MP)

Worksheets for duplication concerned with classification and measure of various geometric shapes are given. (MK)

This module, designed for use at the high school level as a four- to eight-hour topic, includes: the geometry of a sphere, the coordinate system used to describe points on the earth's surface, parallel and meridian sailing, and the solution of right spherical triangles. (Author/MK)

Explores evidence supporting need for the study of statistics at the high school level, considers the scope and sequence of a unit on statistics for high school students, and considers some relevant and useful activities for use with such a unit. (Author/DS)

Included are nine brief notes on various aspects of infinity. These are an attempt to stimulate and organize the thinking of teachers and others who acknowledge the role notions of infinity play in mathematics and in children's thinking. (MK)

This report discusses students' understanding of the algebraic concepts of gradient and intercept with respect to simple graphs. A pilot study is described which attempts to identify the difficulties students encounter and determine the number of students who have these difficulties. (MK)

The purpose of this article is to stimulate a discussion about the teaching of algebra. It seeks to raise questions which are more fundamental than those so far generated by the manipulative skills debate. (Author/MK)

This paper discusses some of the factors which have to be considered in constructing an adequate description of the understanding of mathematics. It examines three models of understanding which have appeared during the last three years. (Author/MK)

Concern about certain of the difficulties encountered by undergraduate students in learning mathematics is discussed. Three attitudes of present-day undergraduates which contribute significantly to the difficulties encountered by students are examined. (Author/MK)

Attention is drawn to an ancient Greek method for finding the least common multiple (LCM) of two numbers. A link is established between this method and a well-known method of obtaining the highest common factor (HCF) numbers. This leads to consideration of some relationships between HCF and LCM. (Author/MK)