This article presents the investigation of a Continuing Training course for Mathematics teachers in the final years of Elementary School, with a view to integrating mobile devices into teaching practice. In the theoretical framework, Digital Technologies, Didactic Sequences and the Technological model were addressed. Pedagogical Content Knowledge. The general objective of the research was to investigate the contributions of a continuing education course for the integration of mobile devices in the teaching practice of Mathematics teachers. As a result, it was found that the main contributions of the course to the participants' teaching practice refer to the expansion of their Knowledge about applications that address mathematical content, increasing teachers' confidence in integrating mobile devices, and the expansion of teachers' vision regarding the integration of technological resources, resulting from the sharing of experiences and the study of the theoretical basis covered during the course.
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