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Summing It All Up: Pre-1900 Algorithms.

Peer reviewed

Pearson, Eleanor S. – Arithmetic Teacher, 1986

Computational algorithms from American textbooks copyrighted prior to 1900 are presented--some that convey the concept, some just for special cases, and some just for fun. Algorithms for each operation with whole numbers are presented and analyzed. (MNS)

Descriptors: Algorithms, Computation, Division, Elementary Education

Analyzing and Modeling Arithmetic Errors.

Peer reviewed

Blando, John A.; And Others – Journal for Research in Mathematics Education, 1989

Seventh-grade students were tested to uncover arithmetic errors. Answers and intermediate steps were analyzed and models to represent students' behavior were developed. Certain errors were common across students. Others were tied to the format of the test item. Some superficial understandings of mathematical concepts were exposed. (Author/DC)

Descriptors: Algorithms, Arithmetic, Computation, Error Patterns