The Older of Two Trees: Young Children's Development of Operational Time

Autor/inn/en	Kamii, Constance; Russell, Kelly A.
Titel	The Older of Two Trees: Young Children's Development of Operational Time
Quelle	In: Journal for Research in Mathematics Education, 41 (2010) 1, S.6-13 (8 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-8251
Schlagwörter	Time; Mathematical Concepts; Young Children; Elementary School Students; Cognitive Development; Logical Thinking + Suchen Sie Ihr Suchwort? Zeit; Frühe Kindheit; Kognitive Entwicklung
Abstract	Piaget (1971) made a distinction between intuitive (preoperational) time and operational (logico-mathematical) time. According to Piaget, operational time develops around 7-8 years of age and is characterized by children's ability to deduce, for example, that if A was born before B, A will always be older than B. When time is still intuitive, children base their judgments of age on what is observable (e.g., people's height). With the aid of 11 pictures of an apple tree and a pear tree taken on six consecutive birthdays, 184 children in grades K-5 were individually asked, at a specific time, if two trees were the same age or if one was older than the other. Operational time was demonstrated by 79% of these children by grade 3. (Contains 2 figures and 3 tables.) (As Provided).
Anmerkungen	National Council of Teachers of Mathematics. 1906 Association Drive, Reston, VA 20191-1502. Tel: 800-235-7566; Tel: 703-620-3702; Fax: 703-476-2970; e-mail: orders@nctm.org; Web site: http://www.nctm.org/publications/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10