Instruments of semiotic mediation in algebra, an example

Abstract : The paper presents a class discussion which was set up within a long term experiment concerning the use of a software, L'Algebrista, to introduce pupils to theoretical thinking and symbolic manipulation. From the analysis of the discussion we will illustrate some aspects of how a teacher can use an instrument of semiotic mediation in order to guide the genesis and evolution of new concepts.
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Michele Cerulli. Instruments of semiotic mediation in algebra, an example. Third Conference of the European Society for Research in Mathematics Education (CERME 3), 2004, Bellaria, Italy. 8 p. ⟨hal-00190518⟩

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