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| Concept Formation | 2 |
| Elementary Education | 2 |
| Subtraction | 2 |
| Algorithms | 1 |
| Arithmetic | 1 |
| Integers | 1 |
| Learning Strategies | 1 |
| Mathematics Education | 1 |
| Mathematics History | 1 |
| Mathematics Instruction | 1 |
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| Information Analyses | 2 |
| Journal Articles | 2 |
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Peer reviewedStreefland, Leen – Journal of Mathematical Behavior, 1996
Attempts to reconstruct the productive ideas that evolved from already existing sources for the teaching and understanding of negative numbers. Discusses examples from developmental research. (Author/MKR)
Descriptors: Concept Formation, Elementary Education, Integers, Mathematics Instruction
Peer reviewedRoss, Susan; Pratt-Cotter, Mary – Mathematics Educator, 1997
Reviews the historical development of subtraction algorithms used in the United States. Indicates that the algorithms used to teach subtraction have not changed much in the last 40 years, but in the late 1800s and early 1900s, different algorithms were developed that had a great impact. Contains 22 references. (DDR)
Descriptors: Algorithms, Arithmetic, Concept Formation, Elementary Education
