Understanding teachers’ work though their interactions with resources for teaching

Lyon, France, May 28-30, 2018 - Ten years after the emerging of the documentational approach to didactics, work in progress, theoretical networking, international enlightening and programs of research. The development of the Internet and the abundance of digital resources, in addition to the emergence of new forms of teacher collective work, lead to new developments and uncertainties in teaching and learning of mathematics. These upheavals have given rise to new theoretical needs: how to analyze teachers' work when they prepare for their teaching? How to conceptualize the relationships between individual and collective work? How to follow the related processes over the long term? Ten years ago these theoretical and practical needs led to the proposal of a new frame, the documentational approach to didactics, in the field of mathematics education (Gueudet & Trouche, 2009). This approach has developed in relation to other approaches in the field, in France and internationally. It has resulted in approximately twenty theses, crossed other theoretical frames throughout the development of research programs at the national level (ANR ReVEA in France for example) or international (European projects such as MC2, projects in Argentina, Brazil, China, Lebanon or Senegal). The initial field, mathematics at secondary school, has been expanded from Kindergarten to University, and to other fields of application: languages, biology, chemistry, physics.