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ERIC Number: EJ830050
Record Type: Journal
Publication Date: 2009-Jan
Pages: 20
Abstractor: As Provided
Reference Count: 34
ISBN: N/A
ISSN: ISSN-1098-6065
Preschoolers' Understanding of Subtraction-Related Principles
Baroody, Arthur J.; Lai, Meng-lung; Li, Xia; Baroody, Alison E.
Mathematical Thinking and Learning: An International Journal, v11 n1-2 p41-60 Jan 2009
Little research has focused on an informal understanding of subtractive negation (e.g., 3 - 3 = 0) and subtractive identity (e.g., 3 - 0 = 3). Previous research indicates that preschoolers may have a fragile (i.e., unreliable or localized) understanding of the addition-subtraction inverse principle (e.g., 2 + 1 - 1 = 2). Recognition of a small collection's cardinal value and computational experience, particularly with subtractive negation, may play a key role in the construction of an understanding of inversion. Testing with eighty 3 to 7 year olds revealed that most children demonstrated a reliable and general understanding of subtractive negation and identity at 4 years of age. In contrast, such an understanding of the inverse principle was not achieved by most children until 6 years of age and was preceded by recognition of "two" and "three" and an understanding of subtractive negation and identity. (Contains 2 footnotes, 5 tables and 2 figures.)
Routledge. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site: http://www.tandf.co.uk/journals
Publication Type: Journal Articles; Reports - Research
Education Level: Preschool Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A