The GSP as a technical and psychological-symbolic tool: The case of a lateral entry teacher
Tipo de documento
Lista de autores
Sáenz-Ludlow, Adalira y Athanasopoulou, Anna
Resumen
One academic semester long pilot teaching-experiment on the learning of geometry was conducted with one pre-service teacher, one lateral entry teacher, and two in-service teachers. The purpose of the pilot teaching experiment was to understand how learners, who already have some knowledge of geometric objects, are able to reorganize and broaden their knowledge when using the Geometer’s Sketchpad (GSP). The guiding principle of the teaching-experiment was to use semi structured tasks especially designed for the GSP to foster the three way-interaction among the student-teacher, the GSP, and the teacher interviewer. The objective of each task was to allow each participating student-teacher the freedom to explore geometric situations, to make conjectures, and to prove them. In this article, we analyze how the lateral entry teacher, here with the pseudonym of Susan, solved a task which purpose was to investigate isosceles trapezoids and some of the properties. The analysis indicates that Susan used the GSP as a technical tool but also constituted it into a psychological-symbolic tool in the process of conceptualizing and proving some of the properties of isosceles trapezoids.
Fecha
2012
Tipo de fecha
Estado publicación
Términos clave
Conocimiento | Desarrollo del profesor | Geometría | Otro (tipos estudio) | Software
Enfoque
Idioma
Revisado por pares
Formato del archivo
Editores (capítulo)
Álvarez, Carlos Abel | Athanasopoulou, Anna | D'Amore, Bruno | León, Olga Lucía | Sáenz-Ludlow, Adalira | Vasco, Carlos Eduardo
Lista de editores (capitulo)
Vasco, Carlos Eduardo, Álvarez, Carlos Abel, León, Olga Lucía, Athanasopoulou, Anna, Sáenz-Ludlow, Adalira y D'Amore, Bruno
Título del libro
Perspectivas en la Didáctica de las Matemáticas
Editorial (capítulo)
Lugar (capítulo)
Rango páginas (capítulo)
167-188
Referencias
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Proyectos
Cantidad de páginas
22