This research presents teachers' data of Basic Instruction, analysing the comprehension of teachers' role in the stimulation process and maintenance of students' interest for school. The theoretical approach understands the human development through mediated social interaction. The data were collected with semi-structured interviews applied to five teachers approaching subjects about formation, conceptions of "good and bad students" and definitions of stimulation and motivation. The results, analyzed in a qualitative-descriptive perspective, show conceptions of good student valuing aspects of the school culture and the active participation of the students. There's satisfaction for the profession, however, they complain about the bad salary and depreciation of teaching. There aren't clear concepts about motivation and stimulation. They need to be formed to act as mediators of the teach-learning process, to reach coherence in the conceptions of teachers and students, preventing disinterest, failure processes and school evasion.
teach-learning process; motivation; school interest; teacher-student interaction; teachers' formation