2019
DOI: 10.5565/rev/ensciencias.2603
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Una experiencia de investigación-acción para la enseñanza de la proporcionalidad compuesta

Abstract: RESUMEN • En este trabajo describimos y analizamos los resultados de una experiencia de enseñanza de la proporcionalidad compuesta llevada a cabo con alumnos de 1.º y 2.º de secundaria bajo el paradigma de la investigación-acción. La propuesta de enseñanza está elaborada a partir del análisis de los objetos didácticos y los problemas de la enseñanza tradicional. La experimentación se llevó a cabo durante cuatro cursos académicos, en los que se realizaron dos ciclos de investigación-acción. La amplia muestra de… Show more

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(2 citation statements)
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“…From a mathematical point of view, proportionality organizes phenomena modeled by relatively simple functions such as f ( x ) = kx in the case of direct proportion and f ( x ) = k/x in the case of inverse proportion. Generally, situations of multiple proportions (that may involve direct and inverse relationships between pairs of quantities) can be modeled by homogeneous functions of the form f ( x 1 ,…, x n ) = k i .1em = .1em 1 n x i ai , a i ∈ {−1, …,1} (Martínez-Juste et al, 2017, 2019).…”
Section: Conceptual Frameworkmentioning
confidence: 99%
See 1 more Smart Citation
“…From a mathematical point of view, proportionality organizes phenomena modeled by relatively simple functions such as f ( x ) = kx in the case of direct proportion and f ( x ) = k/x in the case of inverse proportion. Generally, situations of multiple proportions (that may involve direct and inverse relationships between pairs of quantities) can be modeled by homogeneous functions of the form f ( x 1 ,…, x n ) = k i .1em = .1em 1 n x i ai , a i ∈ {−1, …,1} (Martínez-Juste et al, 2017, 2019).…”
Section: Conceptual Frameworkmentioning
confidence: 99%
“…A widely used classification of proportionality tasks (Cramer & Post, 1993) is based on the distinction between missing-value problems and comparison problems (either quantitative or qualitative). This classification is usually restricted to direct proportion situations but can be extended not only to inverse proportion situations but also to multiple proportion situations (Martínez-Juste et al, 2017, 2019). In missing-value problems, three of the four values are given and students were asked to determine the missing value (Lamon, 2007).…”
Section: Conceptual Frameworkmentioning
confidence: 99%