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ERIC Number: ED500993
Record Type: Non-Journal
Publication Date: 2003-Jul
Pages: 8
Abstractor: Author
Reference Count: 5
Mental Functioning of Instruments in the Learning of Geometrical Transformations
Hoyos, Veronica
International Group for the Psychology of Mathematics Education, Paper presented at the 27th International Group for the Psychology of Mathematics Education Conference Held Jointly with the 25th PME-NA Conference (Honolulu, HI, Jul 13-18, 2003), v3 p95-102
A case study is presented on what is learned by a very advanced Math student in a ninth grade class (fifteen years old, approximately). This case was obtained from an exploratory study carried out in a classroom of eighteen students when the employment of certain cultural artifacts was introduced to approach the theme of basic geometrical transformations. The analysis of the activity from a communicational approach to learning (Sfard, 2001) was useful to detect objectification of the geometric properties involved. Also, probable use schema construction derived from the manipulation of Cabri-II software and of large jointed machines allowed for hypotheses to be put forward on the realization of internalization processes (Mariotti, 2002). (Contains 2 footnotes and 3 figures.) [For complete proceedings, see ED500858.]
International Group for the Psychology of Mathematics Education. 35 Aandwind Street, Kirstenhof, Cape Town, 7945, South Africa. Tel: +27-21-715-3559; Fax: +27-88-021-715-3559; e-mail:; Web site:
Publication Type: Reports - Research; Speeches/Meeting Papers
Education Level: Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: Mexico