After the contextualization of the Portuguese curricular basic school science reform, an innovative didactic work proposal was presented to be applied in the classroom by science teachers - "design-based research (DBR)". With this approach we intend to solve teachers and researchers problems like the implementation of research-oriented practice and to decrease the gap between educational research and teacher practice. The above-mentioned approach integrates the scientific language teaching, crucial for scientific literacy and scientific culture. The teachers' training, as a challenge to solve those problems is a privileged field for analysis.
design-based research; curricular reform in Portugal; Didactics of science teaching; scientific language; training of science teachers