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Communication Dans Un Congrès Année : 2019

The evolution of 9-year-old students’ understanding of the relationships among geometrical shapes

Melania Bernabeu
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Mar Moreno
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  • PersonId : 1060378

Résumé

We conducted a teaching experiment of ten lessons with third-grade students (9-years-olds) to analyse the evolving understanding of the relationships among geometrical shapes. In the teaching experiment, pupils recognized, described, represented, built and classified two-dimensional figures. Analysis of pre-/post assessments showed some changes in students reasoning about how they began making sense of the relationships among the geometrical shapes. However, the use of formal definitions of geometrical shapes constituted a challenge for students since they imposed linguistics conditions to how the relationships among figures could be established. The results show that understanding the relationships among geometrical shapes is a slow process and depends on the logical terms used in the formal definitions.
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Dates et versions

hal-02402115 , version 1 (10-12-2019)

Identifiants

  • HAL Id : hal-02402115 , version 1

Citer

Melania Bernabeu, Salvador Llinares, Mar Moreno. The evolution of 9-year-old students’ understanding of the relationships among geometrical shapes. Eleventh Congress of the European Society for Research in Mathematics Education, Utrecht University, Feb 2019, Utrecht, Netherlands. ⟨hal-02402115⟩

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