Abstrak: Penelitian ini bertujuan untuk mengkaji dan mendeskripsikan peningkatan hasil belajar dalam pembelajaran Matriks melalui media Google Classroom di STMIK STIKOM Indonesia. Jenis penelitian yang dilaksanakan adalah Penelitian Tindakan Kelas (PTK) dengan model Kurt Lewin. yang terdiri dari empat langkah, yaitu: perencanaan, tindakan, pengamatan dan refleksi. Penelitian ini dilaksanakan di kelas DC semester I Program Studi Teknik Informatika STMIK STIKOM Indonesia dengan banyaknya mahasiswa 44 orang. Pertimbangan pemilihan kampus ini sebagai tempat penelitian karena dari hasil wawancara dengan dosen pengampu mata kuliah menyatakan hasil belajar pokok bahasan Matriks masih kurang dan belum pernah diadakan penelitian yang serupa. Berdasarkan hasil penelitian, dapat disimpulkan bahwa pembelajaran dengan menggunakan aplikasi Google Classroom dapat meningkatkan hasil belajar mahasiswa. Hal ini ditunjukkan oleh perolehan hasil belajar mahasiswa dengan tes hasil belajar pada prasiklus nilai rata-rata mahasiswa 52,59 dengan ketuntasan belajar 40,91% dan daya serap sebesar 51,59%. Untuk Siklus I diperoleh nilai rata-rata 64,32, ketuntasan belajar 68,18% dan daya serap sebesar 64,32%. Sedangkan pada siklus II diperoleh nilai rata-rata 76,14, ketuntasan belajar 86,36% dan daya serap 76,14%. Peningkatan persentase nilai rata–rata mahasiswa, ketuntasan belajar, daya serap dari prasiklus ke siklus I berturut–turut 24,67%, 66,66%, dan 24,67%, dan persentase peningkatan rata-rata hasil belajar, ketuntasan belajar, dan daya serap mahasiswa dari siklus I ke siklus II berturut-turut sebesar 18,37%, 26,66%, dan 18,37%.Abstract: This study aims to examine and describe the improvement of learning outcomes in Matrix learning through Google Classroom media at STMIK STIKOM Indonesia. The type of research carried out is classroom action research (PTK). ith the Kurt Lewin model which consists of four steps, namely: planning, acting, observing, reflecing. This research was conducted in the first semester DC class Informatics Engineering Study Program STMIK STIKOM Indonesia with 44 students. The consideration of choosing this campus as a research location was because because the results of interviews with lecturers who taught subjects stated that the learning outcomes of the Matrix subject were still lacking and similar research had never been conducted. Based on the research results, it can be concluded that learning using theapplication Google Classroom can improve student learning outcomes. This is indicated by The acquisition of student learning outcomes by means of a pre-cycle learning achievement test with an average value of 52.59 students with learning completeness of 40.91% and absorption capacity of 51.59%. For Cycle I, the average value was 64.32, learning completeness was 68.18% and absorption capacity was 64.32%. Whereas in the second cycle the average value was 76.14, learning completeness was 86.36% and absorption capacity was 76.14%. An increase in the percentage of students' mean scores, learning completeness, absorption from pre-cycle to cycle I respectively 24.67%, 66.66%, and 24.67%, and the percentage increase in average learning outcomes. learning completeness, and student absorption from cycle I to cycle II respectively at 18.37%, 26.66%, and 18.37%.