The experiment presented here sits within a long-term project, which started with Grade 4 students and is currently being carried out in a 5th Grade classroom (primary school). This project, about a Desarguesian form of geometry, centres on the study of cognitive processes of semiotic mediation through the use of tools (perspectographs). At the beginning the students are presented with a perspectograph and by the end they are required to construct a device to do perspective drawing. This poster illustrates the key elements of the beginning of the experiment, focused on identifying the basic components of the artefact (ocular, glass).
The use of perspectographs in primary school: artifacts, instruments and semiotic mediation / Maschietto, Michela; F., Ferri. - ELETTRONICO. - (2004). (Intervento presentato al convegno Third Conference of the European Society for Research in Mathematics Education tenutosi a Bellaria nel 28 February - 3 March 2003).
The use of perspectographs in primary school: artifacts, instruments and semiotic mediation
MASCHIETTO, Michela;
2004
Abstract
The experiment presented here sits within a long-term project, which started with Grade 4 students and is currently being carried out in a 5th Grade classroom (primary school). This project, about a Desarguesian form of geometry, centres on the study of cognitive processes of semiotic mediation through the use of tools (perspectographs). At the beginning the students are presented with a perspectograph and by the end they are required to construct a device to do perspective drawing. This poster illustrates the key elements of the beginning of the experiment, focused on identifying the basic components of the artefact (ocular, glass).
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