The main objective of the study was to analyse the contribution of teachers in the early grades to their professional conduct, as well as the impact this has had on the professional practice of the teachers investigated. This research was carried out with two literacy teachers from the Luís Ferreira Lima Municipal School for Early Childhood and Primary Education, located in the city of Russas-CE. The work was carried out in the second half of 2016, with a qualitative approach, using a case study to develop the work in the field, and then analysing bibliographic content to discuss the subject.