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Elementary Education	2
Elementary School Mathematics	2
Fractions	2
Mathematical Concepts	2
Mathematical Models	2
Mathematics Instruction	2
Cognitive Processes	1
Concept Formation	1
Decimal Fractions	1
Elementary School Teachers	1
Inservice Teacher Education	1
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Mathematics Materials	1
Preservice Teacher Education	1
Rational Numbers	1
Teacher Education	1
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Arithmetic Teacher

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Lester, Frank K., Jr.	1
Leutzinger, Larry P.	1
Nelson, Glen	1

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Journal Articles	2
Opinion Papers	1

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Let's Do It--Fractions with Models.

Peer reviewed

Leutzinger, Larry P.; Nelson, Glen – Arithmetic Teacher, 1980

Ways are presented to help students develop precomputational fraction concepts and skills using a circular-region or "pie" model. (MK)

Descriptors: Concept Formation, Elementary Education, Elementary School Mathematics, Fractions

Teacher Education: Preparing Teachers to Teach Rational Numbers.

Peer reviewed

Lester, Frank K., Jr. – Arithmetic Teacher, 1984

It is suggested that elementary school students find rational numbers troublesome because some teachers have an inadequate understanding of rational number concepts and poor facility with rational numbers skills. How to help them overcome difficulties, develop concepts, and know what topics to emphasize are discussed. (MNS)

Descriptors: Cognitive Processes, Decimal Fractions, Elementary Education, Elementary School Mathematics