This study aimed to describe the in-service teacher perceptions of constructing best practices using the STAR method regarding overcoming student learning problems. Teachers often experience difficulties in dealing with students' problems when learning English. This research was designed using a qualitative descriptive method. The subjects used were in-service teachers participating in the Teacher Professional Program (Pendidikan Profesi Guru/PPG) for the 2022 academic year as many as 31 people. However, due to time constraints, only 4 subjects were taken representing each city in East Java, namely Sidoarjo, Lamongan, Jombang and Lumajang. The research instrument was structured interviews about in-service teacher perceptions when using the STAR method to construct best practices. Thematic analysis was used to analyse the interview data. The results of the interview analysis showed that the perceptions of in-service teachers were positive because the procedure for the STAR method, which consisted of Situations, Challenges, Actions, Reflections on Results and Impacts, helped teachers in overcoming student problems in learning. In conclusion, the STAR method helped in-service teachers quickly find solutions to problems faced by students when learning English.