Conocimiento movilizado por estudiantes para maestro, al comparar áreas de figuras 2D
This study seeks to characterize the specialized mathematical knowledge that preservice teachers make use of when solving tasks that involve comparison of areas of flat figures. [Methodology] Seventy (70) preservice teachers, in the third year of the Primary Education degree at the Universidad Autón...
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Veröffentlicht in: | Uniciencia 2022-11, Vol.36 (1), p.1-20 |
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Zusammenfassung: | This study seeks to characterize the specialized mathematical knowledge that preservice teachers make use of when solving tasks that involve comparison of areas of flat figures. [Methodology] Seventy (70) preservice teachers, in the third year of the Primary Education degree at the Universidad Autónoma de Barcelona during the period 2020-21, participated in the study. Preservice teachers answered a semi-structured open-ended questionnaire, which included eight tasks. A qualitative content analysis was carried out to analyze the procedures and justifications used by preservice teachers when solving two tasks. The analysis focuses on two of the subdomains of the Mathematics Teacher’s Specialized Knowledge model, Knowledge of Topics and of the Structure of Mathematics. [Results] The use of procedures related to the decomposition and reorganization of surfaces facilitates making use of categories of specialized knowledge, and establishing connections with other types of mathematical content. Furthermore, coordination of different registers of representation makes it possible to establish intra conceptual connections in the solution of the two tasks presented. [Conclusions] Representations, in their discursive and non-discursive registers, are presented as key indicators which assist in making explicit the procedures used by preservice teachers, and based on them, the justifications, properties and geometric principles that support the resolution process.
[Objetivo] Este estudio busca caracterizar el conocimiento matemático especializado que movilizan estudiantes para maestro, al resolver tareas que involucran la comparación de áreas de figuras planas. [Metodología] Participan 70 estudiantes para maestro que cursan el tercer año del grado de Educación Primaria, en la Universidad Autónoma de Barcelona, durante el periodo 2020-21. Los estudiantes para maestro responden un cuestionario semiestructurado de respuesta abierta que contemplaba un total de ocho tareas. Se realiza un análisis de contenido cualitativo que considera los procedimientos y las justificaciones utilizadas por los estudiantes para maestro en la resolución de dos tareas. El foco está en dos de los subdominios del modelo de Conocimiento Especializado del Profesor de Matemáticas, el Conocimiento de los Temas y de la Estructura de las Matemáticas. [Resultados] El uso de procedimientos relacionados con la descomposición, y reorganización de superficies, facilita la movilización de categorías de conoc |
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ISSN: | 2215-3470 |
DOI: | 10.15359/ru.36-1.41 |