Statistical knowledge of future secondary mathematics teachers in reading and arguing graphical information
Francisco Rodríguez-Alveal 1 * , Carmen Gloria Aguayo-Arriagada 2 , Danilo Díaz-Levicoy 3
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1 Universidad del Bío-Bío, Chillán, CHILE2 Universidad de Almería, Almería, SPAIN3 Centro de Investigación en Educación Matemática y Estadística, Universidad Católica del Maule, Talca, CHILE* Corresponding Author

Abstract

This article describes the levels of reading and the arguments provided by future secondary mathematics teachers from two Chilean universities when decoding the information presented in a histogram and a box plot. A qualitative methodology was followed, based on content analysis. As a data collection technique, an instrument with two activities was applied. The 36 participants were selected through non-probabilistic sampling. Among the main results, it was found that participants perform basic readings of graphical representations. The arguments provided are conceptual in nature and are not related to the activity’s context. Additionally, future teachers do not refute the conclusion formulated based on the box plot, which indicates that they do not connect the representation to the context; those who do fail to provide sufficient justification. The study concludes that there is a need to strengthen argumentation skills to foster statistical literacy and statistical thinking.

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Article Type: Research Article

EURASIA J Math Sci Tech Ed, Volume 21, Issue 12, December 2025, Article No: em2751

https://doi.org/10.29333/ejmste/17503

Publication date: 03 Dec 2025

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Article Downloads: 13

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