Conceptions about decimal numbers in future teachers.

Abstract

The purpose of this article is to report the development and results of a workshop conducted remotely dedicated to expanding mathematical knowledge about decimal numbers. The object of study and intervention were eight second semester students at a Rural Normal School in the State of Zacatecas, Mexico. Due to the untimely arrival of Sars-Cov2 in 2020, the preparation of face-to-face activities was adapted to be carried out at a distance. It began with the application of a diagnosis to define the appropriate contents. The Meet platform, Google forms, electronic whiteboards and smartphones were used as the main resources for action. The results show that participants advanced in their knowledge and understanding of decimal numbers, as well as in their argumentation skills. Interaction and social construction of knowledge were possible despite the physical distance thanks to the permanent request to compare and justify the answers of the different students using the available means.