Downscaling and upscaling Fermi problems - Archive ouverte HAL
Communication Dans Un Congrès Année : 2019

Downscaling and upscaling Fermi problems

Résumé

The introduction of modeling tasks in the first grades of primary school requires a deep reflection from the point of view of both the design and the implementation. In this paper we describe an empirical exploratory study developed with the objective of designing a sequence of modeling tasks focused on solving a big numbers estimation problem that, in origin, is inaccessible for students. The key to the design of our sequence is to use a technique that we have called downscaling - upscaling, inspired by heuristic strategies. So, by resizing the initial problem, 2nd grade students are able to tackle a problem that seemed very big using complex mathematical procedures.
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Dates et versions

hal-02408969 , version 1 (13-12-2019)

Identifiants

  • HAL Id : hal-02408969 , version 1

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Marta Pla-Castells, Irene Ferrando. Downscaling and upscaling Fermi problems. Eleventh Congress of the European Society for Research in Mathematics Education, Utrecht University, Feb 2019, Utrecht, Netherlands. ⟨hal-02408969⟩

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