An exploratory study of direct proportional covariation - Jiménez T., Luz Stella;Vanegas G., Carolina;Puertas P., Flor Alba
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This book discusses the importance of the development of proportional reasoning in elementary education, based on the idea that this should not be restricted in the teaching process to the exclusive use of the rule of three, since this way concepts and significant processes that involve the development of variational thinking are ignored. The alternative proposed is to explore proportionality through the formulation of problems in which the covariation relationship is promoted, with the purpose that students identify the two quantities that vary and how each of them changes with respect to the…mehr

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Produktbeschreibung
This book discusses the importance of the development of proportional reasoning in elementary education, based on the idea that this should not be restricted in the teaching process to the exclusive use of the rule of three, since this way concepts and significant processes that involve the development of variational thinking are ignored. The alternative proposed is to explore proportionality through the formulation of problems in which the covariation relationship is promoted, with the purpose that students identify the two quantities that vary and how each of them changes with respect to the other. This relation of covariation is presented not only in the solution of problems, but also in the use and translation into different representation registers such as the pictorial, the tabular and the Cartesian. Different theoretical positions are presented that argue how the relation of covariation, the solution of problems and the use of representations contribute significantly to the understanding of proportionality. Finally, some reflections and suggestions are made.
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Autorenporträt
Luz Stella Jiménez Trejos, Carolina Vanegas Guerrero and Flor Alba Puertas Pardo. Primary school teachers, linked to the Secretary of Education of Bogota, with a Master's Degree in Education with emphasis in Mathematics from the Pontificia Universidad Javeriana. They have worked with elementary school students in different schools in the city.