We present some fragments of a teaching experiment realized in a !rst grade classroom, to sow the seeds for a mathematical de!nition of rectangles that includes squares. Within the paradigm of semiotic mediation, we studied the emergence of pivot signs, which were exploited by the teacher to pave the way towards an inclusive de!nition of rectangles and squares. This was done to favor overcoming children’s spontaneous distinction of these figures into distinct categories, reinforced by everyday language. The experiment is an example of an approach towards the theoretical dimension of mathematics in early childhood.

Using pivot signs to reach an inclusive definition of rectangles and squares / Bartolini, Maria Giuseppina; BACCAGLINI FRANK, ANNA ETHELWYN. - ELETTRONICO. - (2015), pp. 1891-1897. ((Intervento presentato al convegno CERME 9 tenutosi a Prague nel 3-8 February 2015.

Using pivot signs to reach an inclusive definition of rectangles and squares

BARTOLINI, Maria Giuseppina;BACCAGLINI FRANK, ANNA ETHELWYN
2015

Abstract

We present some fragments of a teaching experiment realized in a !rst grade classroom, to sow the seeds for a mathematical de!nition of rectangles that includes squares. Within the paradigm of semiotic mediation, we studied the emergence of pivot signs, which were exploited by the teacher to pave the way towards an inclusive de!nition of rectangles and squares. This was done to favor overcoming children’s spontaneous distinction of these figures into distinct categories, reinforced by everyday language. The experiment is an example of an approach towards the theoretical dimension of mathematics in early childhood.
CERME 9
Prague
3-8 February 2015
1891
1897
Bartolini, Maria Giuseppina; BACCAGLINI FRANK, ANNA ETHELWYN
Using pivot signs to reach an inclusive definition of rectangles and squares / Bartolini, Maria Giuseppina; BACCAGLINI FRANK, ANNA ETHELWYN. - ELETTRONICO. - (2015), pp. 1891-1897. ((Intervento presentato al convegno CERME 9 tenutosi a Prague nel 3-8 February 2015.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/1103585
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