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Radford, Luis; Demers, Serge; Guzman, Jose; Cerulli, Michele – International Group for the Psychology of Mathematics Education, 2004
In this paper we deal with the problem of the genetic relationship between the sensual and the conceptual in knowledge formation. Transcript and videotape analyses of two small groups of a regular Grade 11 mathematics class shed some light on the dialectics between semiotic activity and artefact-mediated kinesthetic actions. The analyses point to…
Descriptors: Grade 11, Semiotics, Mathematics Education, Concept Formation
Radford, Luis; Demers, Serge; Guzman, Jose; Cerulli, Michele – International Group for the Psychology of Mathematics Education, 2003
In this paper we report an analysis of a teaching sequence in which Grade 11 students were asked to produce some graphs corresponding to the relationship between time and distance of a cylinder moving up and down an inclined plane. The students were also asked to carry out the experience using a TI 83+ graphic calculator equipped with a sensor,…
Descriptors: Graphs, Calculators, Grade 11, Mathematics Instruction