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A Aprendizagem dos números racionais

Authors: Monteiro, Cecília; Pinto, Hélia;

A Aprendizagem dos números racionais

Abstract

Este artigo analisa aspectos do ensino e da aprendizagem dos números racionais. Identifica algumas dificuldades com que os alunos se deparam no desenvolvimento do sentido dos fraccionários, nomeadamente quando são representados por fracções. Analisa também diferentes tipos de unidades e a sua relevância na compreensão deste assunto. São discutidos aspectos relativos à passagem das estratégias informais dos alunos na resolução de problemas para a formalização. Apresenta-se ainda, neste âmbito, o contexto Português em relação ao currículo enunciado nos programas e ao currículo implementado. Finalmente faz-se uma referência a estudos, que nesta área, foram já desenvolvidos em Portugal.

Quadrante, Vol. 14 N.º 1 (2005)

Related Organizations
Keywords

Rational numbers, symbols and mathematization, Fractions, Fracção, Estratégias informais, Números racionais, Informal strategies, Símbolos e matematização

  • BIP!
    Impact byBIP!
    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    6
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Average
Top 10%
Average
hybrid