MED: in-service instructional model for mathematics teachers based on experience

Abstract

This paper presents an in-service instructional model for mathematics teachers, called “Improvement of the Teaching Experience”, MED, which has resulted successful in promoting the development of pedagogical content knowledge. From the various experiences of in-service teachers’ education which we have developed, the focus will be on those related to the orchestration of argumentation in the classroom allowing a description of the stages, principles and characteristics of the model, remarking the use of an articulated progression of case studies, where eliciting beliefs and ideas about teaching practices results as a central task to analyze and modify the teaching experience, surpassing the elements of a traditional model. The MED model can be transferred to be used by others teachers educators.