Abstract. Framed within the Theory of Semiotic mediation, the research study we are presenting investigates how the tree representation provided by the Aplusix CAS can become a tool of semiotic mediation for making structural and procedural aspects of algebraic expressions emerge. Description of the potentialities of the tree representation and of the design of specific tasks aiming at exploiting them are presented so as to explain how they may contribute to make the mathematical meanings of algebraic expression emerge in its complexity: as a structure and as a procedure. A teaching experiment is described and some results are discussed.

Mariotti, M.A., & Maffei, L. (2010). Tree representation in the Aplusix CAS: a tool of semiotic mediation for the meaning of algebraic expressions.. In Proceedings of the 34th PME Conference, (pp. 249-256). , Brazil. (pp.249-256). BELO HORIZONTE.

Tree representation in the Aplusix CAS: a tool of semiotic mediation for the meaning of algebraic expressions.

MARIOTTI, MARIA ALESSANDRA;
2010

Abstract

Abstract. Framed within the Theory of Semiotic mediation, the research study we are presenting investigates how the tree representation provided by the Aplusix CAS can become a tool of semiotic mediation for making structural and procedural aspects of algebraic expressions emerge. Description of the potentialities of the tree representation and of the design of specific tasks aiming at exploiting them are presented so as to explain how they may contribute to make the mathematical meanings of algebraic expression emerge in its complexity: as a structure and as a procedure. A teaching experiment is described and some results are discussed.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/42975
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