Learner corpora of written texts from academic writing assignments provide a practical resource for students, particularly in fostering academic writing skills. One such corpus is the newly available ROGER (Corpus of Romanian Academic Genres), a bilingual comparable corpus containing learner discipline-specific academic writing data in Romanian native language (L1) and English as a foreign language (L2). This paper aims to illustrate a series of academic writing teaching approaches supported by the ROGER platform (launched in May 2022) to be applied by tutors in an academic writing classroom setting. The results are structured according to Ädel's (2010) methodological model for fostering rhetorical functions and specific phraseology in academic writing, coupled with addressing metadiscourse markers to better assist in the enhancement of students' academic writing skills at the university undergraduate level. [For the complete volume, "Intelligent CALL, Granular Systems and Learner Data: Short Papers from EUROCALL 2022 (30th, Reykjavik, Iceland, August 17-19, 2022)," see ED624779.]