Strategies of Number Sense in Pre-service Secondary Mathematics Teachers |
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Authors: | Rut Almeida Alicia Bruno Josefa Perdomo-Díaz |
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Institution: | 1.University of La Laguna,La Laguna (Tenerife),Spain;2.Centro de Modelamiento Matemático y Centro de Investigación Avanzada en Educación, University of Chile,Santiago de Chile,Chile |
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Abstract: | This paper presents some results of an investigation on the number sense of a group of pre-service secondary teachers from Spain. The objective of this research was to analyze students’ use of strategies associated to number sense and compare them with those obtained in a previous study with pre-service primary teachers in Taiwan, (Yang, Reys & Reys, International Journal of Science and Mathematics Education, 7, 383–403, 2009). Pre-service secondary teachers showed lower success than pre-service primary teachers in a number sense test. Nevertheless, these last based their reasoning mainly on rules and algorithms, while pre-service secondary teachers used more strategies of number sense. In an attempt to delve into the low success shown by of Spanish pre-service secondary teachers, some students were interviewed. Those interviews showed that a deeper work on number sense in the training of these students is needed. |
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