  The attitudes and beliefs of teachers and future physics teachers about
epistemological aspects of Physics play a very important role in teaching the
discipline. In this paper, after describing some of the most important results
reported in the literature, we present the main results of the implementation
of the CLASS test on attitudes and beliefs to hundreds of student and physics
teacher in Uruguay. The results corresponding to the teaching students are
similar to those who choose careers with an emphasis on Physics and Mathematics
and, in turn, are clearly below those presented by professors and researchers.
We highlight then the need to make explicit the issues related to
epistemological attitudes and beliefs in our classes.
