This study analyses the opinion of teachers regarding the inclusion of contents on Bioethics in the curricular structure of high school. Six schools were selected: three public and three private in the main administrative region of Brasília. In a universe of 340 teachers, 150 joined the research. They were given a questionnaire with answers about the existence or not of curricular contents related to the construction of values in the students. The second phase counted with 140 teachers out of those who joined the first part of the research. These teachers received a text briefly explaining what Bioethics is with a closed space for answering if the inclusion of a new discipline on Bioethics would help creating values and ethics attitudes in the students. There was space for justifying this answer. Data analysis showed that: (a) the school has not carried out its role as an instrument of a critical vision; (b) according to the teachers, this is the result of the absence of a discipline focused on the approach to ethic questions; (c) 51% of the respondents took sides with the inclusion of a discipline that deals with Bioethics in the curricular structure of high school because they believe that it would help the construction of the students' moral values and affirmative attitudes.
High school; Values and attitudes; Educational structure; Curricular contents; Bioethics