Children's Evolving Understanding of Polyhedra in the Classroom

Autor/inn/en	Ambrose, Rebecca; Kenehan, Garrett
Titel	Children's Evolving Understanding of Polyhedra in the Classroom
Quelle	In: Mathematical Thinking and Learning: An International Journal, 11 (2009) 3, S.158-176 (19 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1098-6065
Schlagwörter	Children; Cognitive Development; Geometry; Geometric Concepts; Grade 3; Spatial Ability; Class Activities; Pretests Posttests + Suchen Sie Ihr Suchwort? Child; Kind; Kinder; Kognitive Entwicklung; Geometrie; Elementare Geometrie; School year 03; 3. Schuljahr; Schuljahr 03; Räumliches Vorstellungsvermögen
Abstract	To better understand the development of children's thinking in three-dimensional geometry, we conducted a teaching experiment with 8- and 9-year olds in which children built and described polyhedra during several lessons. Analysis of pre-/post-assessments showed that children advanced in their geometric reasoning and began to identify, enumerate, and notice relationships between component parts of polyhedra. Our consideration of a class activity showed how examining a range of examples and non-examples enculturated students into the practice of attending to component parts. Promoting precise, formal definitions for components proved to be a significant challenge for the teacher in establishing norms for class discussions. (Contains 2 footnotes, 5 tables, and 5 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10