The Concept Game, which focuses on the attributes of parity, balance, majority, closure, and skip of seven-digit binary numbers, is described. Originally written as a computer program, the game is modified so that pupils can play with construction paper chips of just paper and pencil. (MP)

Results of the second mathematics assessment of the National Assessment of Educational Progress (NAEP) indicate how 9-year-olds handled decimals prior to much formal instruction, and give insight into areas of difficulty for 13-year-olds who have received instruction. (MP) Aspect of National Assessment (NAEP) dealt with in this document: Results…

An unusual way of using the long multiplication algorithm to solve problems is presented. It is conceptually harder, since it involves negative numbers but is easier to perform once mastered, since the size of the multiplication table required is smaller than the standard one. (MP)

The purpose of this report is to make a tentative contribution to the knowledge of students' understanding of the significance of numerical information. The article relates to a study made by the author. (Author/MK)

A game designed to introduce aspects of coordinate geometry is reviewed. This game situation can be used to improve intellectual development with: the concept of mapping, the objectivation of operation systems, the verification of hypotheses, and organization principles. (MP)

Described are activities using paper plates with dots drawn on them which place a heavy emphasis on matching and ordering sets, on developing mental images of sets, and on perceiving sets of a certain size as composed of smaller subsets. Also suggested are activities involving numerals. (Author/TG)

The use of folding paper strips as a mathematical model in the instruction of operations with fractions is presented. (MP)

Three types of arithmetic algorithms are discussed and compared. These are algorithms designed to get the right answer, computer algorithms, and algorithms designed to get the right answer and understand why. (MP)

Suggestions for outdoor mathematics activities include six each for primary-age and intermediate-age children. (MK)

The authors develop the idea of Niven numbers and discuss their potential usefulness in the classroom. A computer program to generate Niven numbers is provided. (MK)

This discussion of decimals covers topics such as place-value, zero, the decimal indicator, grouping, the metric prefixer, and rules for interpreting dimensions. (MP)

A number of mathematical games, tricks and puzzles, are described as a way to make drills for elementary school students as interesting as possible. (MP)

These worksheets will provide students with experiences in identifying largest and smallest single-digit numbers, in writing names for single-digit numbers, in tests of divisibility, and in writing number sentences. (MP)

This discussion concerns itself with difficulties encountered by students in multiplication and concludes that when children understand a problem they can usually solve it. (MP)

In this second article on flow charts, examples of pictorial and verbal flow charts are given, rules for constructing a flow chart are listed, and sample numerical flow charts are provided. (DT)