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Developing Number Sense: An Approach to Initiate Algebraic Thinking in Primary Education

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Author
Adamuz Povedano, Natividad
Fernández-Ahumada, Elvira
García-Pérez, M. Teresa
Montejo-Gámez, Jesús
Publisher
MDPI
Date
2021
Subject
Number sense
Algebra thinking
Relational thinking
Generalized arithmetic
Tactical calculation
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Abstract
Traditionally, the teaching and learning of algebra has been addressed at the beginning of secondary education with a methodological approach that broke traumatically into a mathematical universe until now represented by numbers, with bad consequences. It is important, then, to find methodological alternatives that allow the parallel development of arithmetical and algebraic thinking from the first years of learning. This article begins with a review of a series of theoretical foundations that support a methodological proposal based on the use of specific manipulative materials that foster a deep knowledge of the decimal number system, while verbalizing and representing quantitative situations that underline numerical relationships and properties and patterns of numbers. Developing and illustrating this approach is the main purpose of this paper. The proposal has been implemented in a group of 25 pupils in the first year of primary school. Some observed milestones are presented and analyzed. In the light of the results, this well-planned early intervention contains key elements to initiate algebraic thinking through the development of number sense, naturally enhancing the translation of purely arithmetical situations into the symbolic language characteristic of algebraic thinking.
URI
http://hdl.handle.net/10396/21108
Fuente
Mathematics 9(5), 518 (2021)
Versión del Editor
http://dx.doi.org/10.3390/math9050518
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