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ERIC Number: EJ912650
Record Type: Journal
Publication Date: 2011-Jan
Pages: 32
Abstractor: As Provided
Reference Count: 59
ISBN: N/A
ISSN: ISSN-0021-8251
Using Dynamic Sketches to Enhance Preservice Secondary Mathematics Teachers' Understanding of Limits of Sequences
Cory, Beth L.; Garofalo, Joe
Journal for Research in Mathematics Education, v42 n1 p65-96 Jan 2011
This study investigates 3 preservice secondary mathematics teachers' understandings of limits of sequences and their changing conceptions of limit during and after instruction involving interactive, dynamic sketches embodying the formal definition of the limit of a sequence. Manipulating a coherent visual representation of the formal definition in the contexts of various sequences, coupled with answering carefully chosen questions and completing interview tasks before, during, and after technology-enhanced instruction, gave the participants opportunities to investigate and reflect on their own concept image as they compared their understandings to the results of the actions they performed on the sketch. (Contains 5 figures and 1 footnote.)
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/
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A