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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ183942
Record Type: CIJE
Publication Date: 1978
Pages: N/A
Abstractor: N/A
Reference Count: 0
ISBN: N/A
ISSN: N/A
The Development of a Proportionality Concept: Judging Relative Fullness
Siegler, Robert S.; Vago, Stephen
Journal of Experimental Child Psychology, 25, 3, 371-95, Jun 78
This paper describes six experiments performed to investigate elementary school childrens' understanding of a proportionality concept, the concept of fullness. (CM)
Descriptors: Abstract Reasoning, Cognitive Development, Concept Formation, Elementary School Students, Height, Research, Space
Publication Type: N/A
Education Level: N/A
Audience: N/A
Language: N/A
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Proportionality Concept