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CIEAEM 64 conference took place in Rhodes, Greece on 23-27 July 2012. It was organized by the Department of Sciences of Preschool Education and of Educational Design, Faculty of Humanities of University of the Aegean.
CERME is one of the largest world congresses bringing together scientists fromall continents and entirely devoted to Mathematics Education.The scientific activities of CERME conferences are always focused mainlyon common work within the so-called Thematic Working Groups(TWGs). The particular way of organising the conference gives the opportunityfor in-depth analyses of the presentations and papers and for working outcommon conclusions after many discussions.
The paper presents a research on how future mathematics teachers use mathematical language and how they transmit and communicate their reasoning. The aim of the research was to elaborate on the characteristics of geometrical language used by students during transforming verbal information into figural one and vice versa. The results show the difficulty in expressing one’s thoughts by formal language. Meanings can be easily distorted because of the use of colloquial language that causes lots of ambiguities....
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