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ERIC Number: EJ856056
Record Type: Journal
Publication Date: 2009
Pages: 19
Abstractor: As Provided
Reference Count: 19
ISSN: ISSN-1098-6065
Children's Evolving Understanding of Polyhedra in the Classroom
Ambrose, Rebecca; Kenehan, Garrett
Mathematical Thinking and Learning: An International Journal, v11 n3 p158-176 2009
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.)
Routledge. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Education; Grade 3
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A