Teaching real numbers and continuum in secondary school: an ontosemiotic approach to the investigation of teachers' choices =
Conference Paper
Publication Date:
2017
Citation:
Teaching real numbers and continuum in secondary school: an ontosemiotic approach to the investigation of teachers' choices = / L. Branchetti - In: Actas del Segundo Congreso Internacional Virtual sobre el Enfoque Ontosemiótico del Conocimiento y la Instrucción Matemáticos / [a cura di] Contreras J M Arteaga P Cañadas G R Gea M M Giacomone B López-Martín M M. - [s.l] : CIVEOS, 2017. - ISBN 978-84-617-9047-0. - pp. 1-10 (( Intervento presentato al 2. convegno Congreso Internacional Vitual sobre el Enfoque Ontosemiótico del Conocimiento y la Instrucción Matemáticos : 23-26 Marcha nel 2017.
abstract:
In this paper, we present a case study concerning teaching and learning of real numbers and
continuum in the Italian high school. In the research, secondary school in-service teachers,
after answering a questionnaire designed to investigate their resources, orientations and
goals, have been asked to declare and motivate their didactical choices concerning the
teaching and learning of real numbers and continuum. Data have been analysed within a
framework including OSA. In particular, two goals were: to investigate how far teachers'
resources, goals and orientations affect the process of decision-making and to look for
criteria of didactical suitability used by the teacher to argument in favour of their declared
choices. After discussing the epistemological complexity of these mathematical objects, we
present a case study, in order to make emerge, among other results, the role of OSA in such
a research.
continuum in the Italian high school. In the research, secondary school in-service teachers,
after answering a questionnaire designed to investigate their resources, orientations and
goals, have been asked to declare and motivate their didactical choices concerning the
teaching and learning of real numbers and continuum. Data have been analysed within a
framework including OSA. In particular, two goals were: to investigate how far teachers'
resources, goals and orientations affect the process of decision-making and to look for
criteria of didactical suitability used by the teacher to argument in favour of their declared
choices. After discussing the epistemological complexity of these mathematical objects, we
present a case study, in order to make emerge, among other results, the role of OSA in such
a research.
IRIS type:
03 - Contributo in volume
Keywords:
real numbers; secondary school; teachers númerosreales; continuo; escuela secundaria; profesores; idoneidad didáctica
List of contributors:
L. Branchetti
Link to information sheet:
Book title:
Actas del Segundo Congreso Internacional Virtual sobre el Enfoque Ontosemiótico del Conocimiento y la Instrucción Matemáticos