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

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)

Problems are discussed in which addition facts are presented using words instead of numbers. The letters are then replaced by numbers that will make the addition problems correct. (MP)

This manipulative model using counters involves balancing the number of counters on either side of the equals sign. (MP)

Addition and subtraction of integers can be approached through the use of chips of two colors. (SD)

Magic squares are used to generate number games similar to tic-tac-toe. Skills that are reinforced include addition of negative numbers and addition and multiplication of fractions. (MP)

A card game is described which gives students practice with adding integers and which also develops the concept of "opposite." (DT)

Helping teachers to build a strong bridge from concrete experiences to algorithms is the focus. A detailed sequence of activities is described. (MN)

A teaching sequence provides a guide to instruction on initial concepts of fractions, equivalent fractions, and addition with fractions. (MN)

An activity is presented which uses the automobile odometer as a means of strengthening pupils' understanding of the addition algorithm with particular emphasis on the concepts of place value and renaming. Directions for three classroom games to be used as supplemental activities also are included. (DT)

An addition "trick," an analysis of why it works, and steps in constructing other problems of the same type from the basis of a discovery learning activity for addition. (DT)

A method of using pegboards to illustrate addition of whole numbers is described. (SD)