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Niemann, Christopher E. – Arithmetic Teacher, 1976
Children enjoy playing a game based on addition module seven. The system can be applied to questions concerning the days of a week. (SD)
Descriptors: Curriculum, Elementary Education, Elementary School Mathematics, Games

Bennett, Albert B., Jr.; Musser, Gary L. – Arithmetic Teacher, 1976
Addition and subtraction of integers can be approached through the use of chips of two colors. (SD)
Descriptors: Addition, Curriculum, Elementary Education, Elementary School Mathematics

Prielipp, Robert W. – Arithmetic Teacher, 1976
Development of the repeating decimal expansion for rational numbers is discussed. Expressions for numbers in other bases are also presented. (SD)
Descriptors: Curriculum, Decimal Fractions, Elementary School Mathematics, Elementary Secondary Education