Penerapan Model Pembelajaran Project Based Learning untuk Meningkatkan Keterampilan Menulis Teks Eksposisi Siswa Kelas X di SMAN 1 Susut

This article describes changes in exposition-text writing scores among Grade X students at SMAN 1 Susut in a learning context reported by the author as using Project Based Learning (PjBL). The available score file contains 32 students and two measurements, treated as initial and final scores based on the author's confirmation. Descriptive statistics were calculated, including the number of students, minimum and maximum scores, mean, median, and mean difference. Initial scores ranged from 75 to 91, with a mean of 82.00 and a median of 81.50. Final scores ranged from 84 to 95, with a mean of 87.78 and a median of 87.00. The mean difference was 5.78 points (7.05% of the initial mean). These results describe a score change; a causal conclusion about PjBL cannot be established from summary scores alone. Further interpretation requires documentation of the implementation, assessment instrument and rubric, and comparability of the measurement procedures.