Situated in the field of Applied Linguistics, the study, linked to the research group "Interaction and writing in the teaching and learning process" (UEM/CNPq), is grounded on the socio-historical perspective of language and has two main objectives: i) to present a diagnosis of the opinion article genre done with pre-service teachers of the Portuguese from the teaching education program at the State University of Maringá, demonstrating their difficulties in doing the didactic transposition of the genre; ii) to reflect about an intervention plan offered by two of the pre-service teachers. One of their lesson plans designed for high school students constituted the research corpus. Data revealed that there was no internalization of the enunciative theories, concepts and knowledge by the pre-service teachers, making the didactic transposition process difficult. The didactic sequence (DS) was an important tool for changing the initial diagnosis in the face of difficulties.
the opinion article genre; didactic transposition; pre-teaching education