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Addition	2
Cognitive Development	2
Computation	2
Elementary Education	2
Manipulative Materials	2
Mathematics Education	2
Mathematics Instruction	2
Mathematics Skills	2
Algorithms	1
Cognitive Processes	1
Estimation (Mathematics)	1
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Memorization	1
Mental Computation	1
Number Concepts	1
Primary Education	1
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School Science and Mathematics

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Clark, H. Clifford	1
Lee, Kil S.	1
Nelson, Marvin N.	1

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Journal Articles	2

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Using a Homemade Calculator to Master the Basic Facts.

Peer reviewed

Nelson, Marvin N.; Clark, H. Clifford – School Science and Mathematics, 1991

Provides the instructions to build a homemade calculator that can be used as a reinforcement device to assist primary students in memorizing their addition facts. (MDH)

Descriptors: Addition, Cognitive Development, Computation, Elementary Education

Left-to-Right Computations and Estimation.

Peer reviewed

Lee, Kil S. – School Science and Mathematics, 1991

Traditional methods of teaching addition include algorithms that involve right-to-left procedures. This article describes efficient procedures for left-to-right addition and subtraction involving computation and computational estimation that reflect children's natural behaviors observed during activities with unifix cubes. (MDH)

Descriptors: Addition, Algorithms, Cognitive Development, Cognitive Processes