Mathematic e-textbooks in different didactic configurations

The e-textbook is one of the main resources that distance learning institutions make available in virtual environment (VLE) for teachers and students. According to Brazilian References Distance Learning, authors should follow some methodological, epistemological political principles its production: allow students (educator tutor) construct knowledge through interaction with peers. In this paper we seek map enrichment content DE carried out by teachers’ educator, from use e-textbook, light analysis teacher’s instrumental orchestrations. theoretical framework comprised Luc Trouche's Instrumental Orchestration, focused on understanding didactic configuration. Three trainers Analytical Geometry two courses Mathematics initial education Open University composed our subjects. As method, adopted techniques used documentational approach didactics, introduced Ghislaine Gueudet Trouche. We made a visit teachers' classroom protocols VLE, then an interview each teacher was undertaken. Finally, asked them draw they class. Our results revealed need add other resources, during mediation forcing change his configurations, think about collective construction discussing parallel learning, tutors performers.