Very specific suggestions for teaching subtraction facts using addition are given. Several activities are suggested. (MK)

Directions are given for preparing a puzzle that may be used to provide practice in computation. (MP)

Developing concepts, modeling, and solving problems form the core of essential learning about addition and subtraction. That educators may make the task more difficult than necessary is the thrust of several recent studies. Highlights from these studies (with suggestions for instruction) are presented. (JN)

Four activities concerning addition and subtraction are described. They range in appropriate grade level from K-2 (crossing out objects) to 6-8 (solving decimal inequalities). Masters for worksheets are provided. (SD)

Presents an activity involving students in a research project with pictures like those commonly found in elementary school mathematics textbooks and workbooks to sharpen student appreciation of the need for standardized methods of data collection. Illustrates that several different interpretations of the operations of addition and subtraction are…

A mathematical card game, based on the actual card game, is described for providing practice with positive and negative numbers. (JT)

Discusses ways of teaching integers to children who have a wide range of ability. The strategies involve not only the "right" answer but also such considerations as learning the meaning behind the operators, relating operations with integers to real-world situations, and finding a variety of ways to solve the problems. (JN)

"Math Facts Memory Made Easy" is a program which provides teachers with an effective alternative instructional method and an accompanying curriculum designed to improve students' ability to memorize basic mathematical facts. General information about the program and examples of strategies used are presented. (JN)

First-grade children mastered 72 of 100 addition facts by the middle of the grade, with mastery being defined as a two-second response to a given addition fact. A sequence of activities is presented that serves as an outline of the approach taken. (JN)

How the manipulative aid called the "10 frame" can be used to teach the number combinations for 10, the addition facts that bridge 10, and the place value nature of our number system is described. (MNS)

Investigated use of the bus context (boarding/leaving a bus) for introducing addition and subtraction in the first grade, as well as other contexts. Indicates that these contexts influence the use of numbers and operations and that they be taught separately before comparisons are made. Also outlines misconceptions related to bus-numbers. (JN)

This article focuses on the aspect of mental arithmetic that uses thinking strategies that are effective with large numbers as well as basic facts. Two activities are suggested for lack of the four operations. (MK)

A learning and teaching approach using base-10 blocks to embody the English named-value system of number words and digit cards to embody the positional base-10 system of numeration is described. Examines the students' understanding and arithmetic skills on the multidigit arithmetic. (Author/YP)

Presents two activities on addition, one for classifying and one for symmetry. (ASK)

This paper proposes a semantic analysis in which meanings of word problems are structures that include class and order relations, and suggests a hypothesis of developmental levels that can account for children's performance of these problems at various ages. The different kinds of problems vary in the complexity of semantic structures and the…