Resumo em língua estrangeira:    This research project has as a domain of interest the challenges of teaching practice as a source of suffering and illness, in view of the responsibility involved in the socially transforming capacity of this office. The teacher's work activity, like any other work activity, contributes to the rupture, construction, deconstruction and emancipation of the subject. It is an activity that has essential psychosocial meaning, and should be considered within the social context in which it is being developed. The challenge of ensuring the common training necessary for the exercise of citizenship is established for the public primary school network, relying on the democratization of education. Characterized by crossing the  situation of precariousness of teaching work, this activity shares the historical  legacy of devaluation of the profession, distance between the prescriptions contained in the frameworks of regulation of nationaleducation and the work that can be performed in viewof the available tools, the context of violence in which the schools of the peripheries are inserted and the involvement with social problemas that characterize and contribute to the aggravation of the precariousness of public education. In this context, the present master's thesis project elects withthe focus of interest the professional activity of the professor who works in the teaching of the municipalpublic network of Natal/RN. The approach of the work activity in questão will have as theoretical framework of reference the perspective of the Atividad Clinicand, which proposes the cultural historical notion of the subject understood by Vygotsky,  highlighting the importance of the professional genre, since the joint activity of the subjects with others can be considered as the driving force of a common history, and of the biographical trajectories of each individual-worker. The challenge is  assumed to establish relationships between the prescribed, real and well-done work bodies,  emphasizing the  individual's ability to act collectively in the face of different situations in his work. The general objective is to analyze the teaching activity, investigating the existing prescriptions for this work, the level of achievement of these prescriptions in concrete work contexts and the ideal of work well done by the municipal teachers of Natal/RN. From this purpose, it is also sought to observe to what extent the distance presented between prescribed work and real work impacts on the conception of work well done considering the professional context  proposed here for analysis. The group of participants to be surveyedwill be the one thatincludes the  multipurpose teacher of the initial years (1st to 5th)  of elementary school, in the urban area of Natal-RN, because it is a long and crucial stage of basic education, in which children undergo significant changes inphysical, cognitive, affective and social aspects, in addition to the burden of social relevance d the activityofthis professional, committed to the process of literacy and basicmathematical and scientificducation as a significant platform for learning in the school trajectory. The proposed research will have a descriptive and clinical-qualitative nature from three tools proposed for the research: a) descriptive documental analysis, b) application  of the instruction technique to the lookalike and c) application of a questionnaire on well-done work. This work  will seek to contribute to the triggering of a critical rethinking, with the potential for  transformation of the subject-worker in terms of evaluation and eventual expansion of his power to act, and realization of the ideal of work well done of the professional category under analysis.