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Revista latinoamericana de investigación en matemática educativa

versão On-line ISSN 2007-6819versão impressa ISSN 1665-2436

Resumo

ESPINOZA RAMIREZ, Lianggi; VERGARA GOMEZ, Andrea  e  VALENZUELA ZUNIGA, David. Geometry in everyday practice: the measurement of inaccessible distances in a text of the XVI century. Relime [online]. 2018, vol.21, n.3, pp.247-274.  Epub 14-Maio-2021. ISSN 2007-6819.  https://doi.org/10.12802/relime.18.2131.

The study of mathematical knowledge in different contexts has acquired relevance due to the current interest in students’ ability to use mathematics in solving real life problems. Thus, the purpose of this research is to characterize the knowledge in use in the measurement of inaccessible distances in Johann Stöffler'sElucidatio Fabricoe Ususque Astrolabii, published in 1513. The theoretical model used considers the study of the constitution of knowledge through the analysis of its genesis, development and transversality. The results reveal in the analyzed work an episteme of the measurement of inaccessible distances that includes both the search for a suitable reason to carry out the measurement and the dynamic analysis of the behavior of the shadows or the visual rays in the estimation of inclinations. This episteme is critical for the understanding of this mathematical knowledge in problem solving

Palavras-chave : Mathematical ratio; Proportionality; Use of knowledge; Gnomon; Astrolabe; History of mathematical knowledge.

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