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Spickerman, William R. – School Science and Mathematics, 1971
Descriptors: Algorithms, Instructional Materials, Mathematics, Multiplication
Peer reviewed Peer reviewed
Friedlander, Richard J. – School Science and Mathematics, 1981
This report illustrates a simple, short, yet relatively little known partial check on addition that elementary school pupils can be lead to discover, and later taught to understand. The process can also be used for subtraction and is viewed as more useful than the traditional check of casting out nines. (MP)
Descriptors: Addition, Algorithms, Elementary Education, Elementary School Mathematics
Peer reviewed Peer reviewed
Elashhab, Gamal A. – School Science and Mathematics, 1978
An algorithm and sequence which utilizes arrays of entities is proposed for explaining the division of two fractions. (MN)
Descriptors: Algorithms, Diagrams, Division, Elementary Education
Peer reviewed Peer reviewed
Vervoort, G. – School Science and Mathematics, 1977
Provides a metric area model which may be used to explain the square root algorithm. (CP)
Descriptors: Algebra, Algorithms, Educational Media, Instructional Materials