Integrating digital resources to the documentation system of a mathematics teacher in a Mexican rural primary-school / Integración de recursos digitales al sistema documental de una profesora de matemáticas en una primaria rural de méxico

Resources play an important role in how subjects act and think. Teachers, throughout their professional career, develop ways of teaching mathematics —articulated by the organization and type of activities that guide their class, the resources they use and their forms of intervention; these are modified when a new resource is integrated. In this paper we present evidence of this phenomenon using the case study of a teacher who, as a result of her participation in a professional development course that we implemented, integrated digital resources into her documentation work, destabilizing her previous forms of teaching.