Geeraerts, Loïc; Tanguay, Denis; Venant, Fabienne; Saboya, Mireille (2013). An activity involving geometry, arithmetic and numerical representations. En Morales, Yuri; Ramirez, Alexa (Eds.), Memorias I CEMACYC (pp. 1-10). Santo Domingo, República Dominicana: CEMACYC.
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Resumen
We propose the a priori analysis of an activity involving geometry, arithmetic and numerical representations of rational numbers. It starts with a geometric manipulation with GeoGebra and gradually leads students to consider the divisors of 360 and to reflect upon approximations and exact representations of angle measurements. A first ‘off-class’ experiment is presented and discussed, as a case study. Through it, we acknowledge that it is possible to design suitable teaching situations, so as to make students reflect in a meaningful context on the dualities ideal object / visual representation, exact measurements / approximations, and on the type of certainty intended from a mathematical standpoint. The activity takes place in the ‘geometer-physicist’ paradigm proposed by Tanguay & Geeraerts (2012, 2013) and instilled by Jahnke (2007, 2010).
Tipo de Registro: | Capítulo o Sección de un Libro |
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Términos clave: | 13. Matemáticas escolares > Geometría 10. Otras nociones de Educación Matemática > Sistemas de representación 13. Matemáticas escolares > Números > Estructuras numéricas > Números racionales 03. Aula > Recursos didácticos > Recursos informáticos > Software |
Nivel Educativo: | Educación Secundaria Media (17 y 18 años) Educación Secundaria Básica (13-16 años) |
Código ID: | 4086 |
Depositado Por: | Cristian Camacho |
Depositado En: | 09 Jun 2014 13:13 |
Fecha de Modificación Más Reciente: | 07 Nov 2016 17:29 |
Valoración: |
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