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| Arithmetic Teacher | 1 |
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| Nibbelink, William H. | 1 |
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Peer reviewedNibbelink, William H. – Arithmetic Teacher, 1990
Proposed is a gradual transition from arithmetic to the idea of an equation with variables in the elementary grades. Vertical and horizontal formats of open sentences, the instructional sequence, vocabulary, and levels of understanding are discussed in this article. (KR)
Descriptors: Algebra, Arithmetic, Back to Basics, Cognitive Development
