Education in Work Environment (EWE) is framed in the modality of Educational Technical Education (ETE) of the compulsory secondary school. In this article we recover the contributions of fieldwork developed in two technical schools in the city of Córdoba, Argentina, where the EWE has the format of an internship. We propose following the contributions of Barroso (2006) and Sarmento (2000) that when teachers and principals enact the EWE, they construct logics of action that give a new meaning to the curriculum. We propose, as hypothesis, that EWE is presented as a space within the technical school where the internal institutional dynamics of each school is objectified, as well as the external dynamics, which intervenes in the articulation school-work world, and, where the market is configured as a regulatory agent of the EWE. [ABSTRACT FROM AUTHOR]