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Journal of Computers in…

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Ecker, Michael W.	1
Good, Robert C., Jr.	1

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The Binary Abacus: A Useful Tool for Explaining Computer Operations.

Peer reviewed

Good, Robert C., Jr. – Journal of Computers in Mathematics and Science Teaching, 1985

A pair of abacuses is used to illustrate addition, subtraction (by adding complements), multiplication, and division, with simplified examples given to illustrate the various features of each operation. Also indicates how this information can help students understand computer operations. (JN)

Descriptors: Arithmetic, Computer Science, Computer Science Education, Elementary Secondary Education

Mathematical Computing. The Game of N, Product-Perfect Numbers, and the ARITHMETICULAR.

Peer reviewed

Ecker, Michael W. – Journal of Computers in Mathematics and Science Teaching, 1988

Describes three games that one can play with or without a computer involving arithmetic, strategy, and problem solving techniques. Lists an abbreviated program for BASIC. Provides information on availability of the variable number game and the ARITHMETICULATOR which does calculations of large numbers and runs on IBM PCs. (RT)

Descriptors: Arithmetic, Computer Uses in Education, Educational Games, Elementary School Mathematics