In the present scenario of the Portuguese Elementary Teaching Curriculum Reorganisation, the idea that science teaching should be looked at as a promoter of literacy becomes increasingly pertinent. In this sense, the STS perspective integrate and globalise knowledge acquisition and develops thinking skills. Nevertheless, any innovation, reformation or curriculum reorganisation forces the re-consideration of the teachers' formation, since the core question of curriculum innovation concerns the use that teachers make of the curriculum guidelines for science teaching in the classroom. This paper aims to give an account of a study developed with the intention of describing and analysing the contribution to an in-service program for science teachers of the construction of STS practices. It is possible to conclude, from the results, that the in-service Program was a good contribution, for the teachers involved, and promoted didactic and pedagogic STS oriented practices.
didactic and pedagogic practices; Science-Technology-Society education; in-service program; Elementary Science teachers