This paper presents different teaching "contextualization" conceptions found in official curricular documents and with teachers from Science Education and Biology areas. We discuss the pedagogical implications of these conceptions to respective areas, especially to the organization of teaching. To indentify these conceptions, this research analyzed the content of these documents in different jurisdictional levels - federal (BR), state (SP) and Hall (SP) - as well as the speech of science and biology teachers involved in an activity of continuous teacher training. The analysis of the pedagogical potential of these conceptions showed that the diversity of interpretations about an important curricular principle can offer numerous possibilities for the teacher, instructional mediations in their difficult tasks of planning and organizing teaching, since these can be explained and explored through the process of transposition education in which the teacher participates. Some of these possibilities are explored in the final text.
Conceptions; Science education; Curriculum proposals; Teachers; Didactic mediation
