Myths and truths about the golden ratio: contributions of the use of historical information in the training of teachers

• Main Authors: Ana Caroline Frigéri Barboza, Érica Gambarotto Jardim Bergamim, Lucieli M. Trivizoli
• Format: Article
• Language: Spanish
• Published: Universidade Federal do Pará 2020-12-01
• Series: Amazônia
• Subjects: história na educação matemática; formação docente; razão áurea; mitos e verdades
• Online Access: https://periodicos.ufpa.br/index.php/revistaamazonia/article/view/7626
• ISSN: 1980-5128; 2317-5125

This paper aims to identify how historical information can contribute to teacher education regarding to the Golden Ratio content. Therefore, in the theoretical framework, the relevance of the teacher's investigative stance and the contributions that the use of the History of Mathematics provides for the training of this professional are discussed, as well as about some aspects of the Golden Ratio. For this purpose, an implementation was carried out that involved the use of the History of Mathematics, in order to work on the Golden Ratio content with 4th year students of the Mathematics Degree course at a public educational institution. In this paper, the focus was directed to the study of myths and truths concerning the Golden Ratio during the planning of the implementation, as well as to the discussions of the students later. The research is qualitative in nature, based on participant observation for data collection and mixed categorization, for analysis of what had been constituted. We concluded that the use of historical information about the Golden Ratio content led to critical manifestations, so that the research teachers and students in initial training had the opportunity to deconstruct certain beliefs impregnated and disseminated in history.