The teacher policies of last decade have sought to strengthen the professional teacher capacity employing the prescription of standards skills, hoping of that these would be key in the obtaining of individual improvements, especially as for teaching practices (Biesta, 2010; Creemers, Kyriakydes & Antoniou, 2013).

Together with these, the regulations that impose the evaluability of performance have transformed in a topic of controversy in Europe and America (EFEE-ETUCE, 2015; Lamont, 2012), since they have occupied the role of an exogenous force that presses the institutional frames and teachers values. It, because his results impact as a factor to considering inside the processes of legitimization to his couples and with other audiences (Thornton, Ocasio & Lounbury, 2012; Suddaby, Bitektine & Haak, 2017).

From the neo-institutional approach, the teacher policy its described as a structure of rules and resources that seek to restrict the individual conduct but that do not become institutionalized for itself: they need the human agency to do it (Coburn, 2016; März, Kelchtermans y Dumay, 2016). That is to say, to be effective the educational standards and evaluations must be legitimized as accepted process by teachers. In this respect, the teachers can be seen as agents of the means which allow him legitimization, in the sense that they construct cultural suppositions to explain and to support his knowledge and practices, to build social meanings, rhetorical or narratives in his interaction with policies and diverse actors (Datnow, 2012; Priestley, Biesta & Robinson, 2015; Suddaby et al., 2017).

In this respect, the tension between agency - structure emerges in the processes of implementation of the policies. In answer to the uncertainties that introduce the regulations, professionals try to adapt, innovate or resist the new regulatory frames. As institutional agents, they search of conditions that allow supporting his legitimacy and of his practices, which introduces the possibility of distortions respect of the original policies (Bridwell-Mitchell, 2015; Coburn, 2016; Priestley et al., 2015).

The idea of that the legitimization is constructed using narratives and rhetorics allows understanding the importance of a community of couples to diffusion of rationalizations and arguments in the constitution of the legitimacy of the group. Also, the team is relevant to carry out delegitimación, the social process of elaborating the illegitimacy of specific practices, regulations or groups  (Lipponen & Kumpulainen, 2011; Suddaby & Greenwood, 2005;  Suddaby et al., 2017).

In relation to the teacher evaluation, this is considered to be a relevant aspect of the teacher policies for professional strengthening, in the sense his results can determine the opportunities for development and wage improvements, especially in countries in which there have been implemented quality assurance systems and individual accountability policies (Marcos, 2015; Isoré, 2009).

In Chile, from the year 2003, the frames of teaching skills and the evaluation by standards were promoted as a tool for the self-monitoring and supervision of the practices of teaching and in this sense, as a suitable alternative to help to improve the students learning (CPEIP, 2008). Nevertheless, from his beginnings up to the date the levels of adoption of these frames of practices have been kept low between the teachers, in such way that in the year 2016 only 40% of them could obtain approbatory level in the portfolios of practices in a classroom (MINEDUC, 2016).

In this scene, the investigation centered on the study of social interactions, rhetorical and narratives with that the teachers are, in the context of the collegiality of couples, implementing the teacher evaluation in Chile. This could help to understand the functioning of this kind of policies and the answer that professionals give to it.

There was realized a study of qualitative character, in that 40 teachers took part in in-depth interviews and under the protocol of informed assent (Flick, 2014). The participants were included from a meaningful sampling: for the colleges (average score in teacher evaluation; region) and for the teachers (sex, years of experience in the classroom, teacher's professional title, evaluated 2013-2016). The interviews were recorded and transcribed under the protocol of literal transcription (Kowal & O'Connell, 2014). Every interview was analyzed under a model of narrative analysis, who put particular emphasis in the presence of processes and speeches about the configuration of legitimization (Brinkmann & Kvale, 2015; Suddaby et al., 2017). Every interview was thematically pre-codified from topics prefigured from the referential frame and the aims of the investigation (Saldaña, 2013). Then there was carried out the first opened codification and contrasted between three codifiers to confirm the emergent categories; then to go on to a process of synthesis to form substantive categories, which realize of the principal subject matters and narratives that arise from the analysis (Brinkmann & Kvale, 2015). The analysis gave proved a total of 62 codes, grouped in 9 substantive categories.

It is discussed two narratives of delegitimation that teachers use: of pollution, which indicates that nowadays students and parents are complex need population, and to they devalue the education that they receive and to the teacher who offers it. This narrative explains the inability to implement teacher standards and to obtain the educational improvements that from them are expected. The second narrative: the fiction of the frames of teacher standards and the process of TE, that would prescribe conditions of work and skills that would be neither real nor pertinent for the teachers. This narrative it is proposed as a contrast with the affirmation of the daily work and the professional expertise as a criterion to evaluate the educational performance, proper of a professional logic. Close to the previous thing, they recognize that TE results have an important effect on the teachers social reputation. As a way of confronting this risk, teachers have legitimized the right to defy the individual format and carrying out TE using collaboration teamwork. In this modality, they spread technics and codes that are relevant to answer and to approve, besides offering and to receive the support of others with good previous results (Lipponen & Kumpulainen, 2011; Marcos, 2015; Tao, 2017). The results are discussed regarding how the professional narratives affect the dynamics of adoption of standards and teacher policies, across dynamics and practices of delegitimation of the proposed frames. Also, it emphasizes how the professionals define his role in interaction with diverse audiences, affecting the dynamics of school-family collaboration. Finally, how the interplay of all these elements is determining the access of the teachers to opportunities of wage improvements and professional development, and for the educational practices that they need to be innovative and inclusive for future citizens (EFEE-ETUCE, 2017; MINEDUC, 2017).

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