ABSTRAK
Tujuan penelitian ini adalah: (1) Untuk membuktikan peningkatan aktivitas belajar siswa kelas XI TKR 1 SMK N 1 Sawit Boyolali pada mata pelajaran Memperbaiki Sistem Injeksi Bahan Bakar Diesel dengan menerapkan model pembelajaran kooperatif tipe Teams Games Tournament (TGT) (2) Untuk membuktikan peningkatan pemahaman belajar siswa kelas XI TKR 1 SMK N 1 Sawit Boyolali pada mata pelajaran Memperbaiki Sistem Injeksi Bahan Bakar Diesel dengan menerapkan model pembelajaran kooperatif tipe Teams Games Tournament (TGT).
Penelitian ini merupakan Penelitian Tindakan Kelas (PTK). Penelitian ini dilaksanakan dalam dua siklus dengan tiap siklus terdiri dari perencanaan, pelaksanaan tindakan, pengamatan, dan refleksi. Subjek penelitian ini adalah siswa kelas XI TKR 1 SMK N 1 Sawit Boyolali. Sumber data berasal dari hasil lembar amatan aktivitas belajar siswa kelas XI TKR 1 dan hasil tes pemahaman belajar siswa kelas XI TKR 1 SMK N 1 Sawit Boyolali. Teknik yang digunakan untuk pengumpulan data adalah teknik tes yang berupa butir-butir soal tes tertulis dan non tes berupa lembar observasi aktivitas belajar siswa yang diambil selama pelaksanaan tindakan. Validitas data menggunakan validitas isi untuk data dari tes belajar dan validitas konstruk untuk validasi non tes. Prosedur penelitian ini terdiri dari rangkaian empat kegiatan yang dilakukan dalam siklus berulang, yaitu perencanaan, pelaksanaan, pengamatan, dan refleksi.
Hasil penelitian menunjukkan bahwa penerapan model pembelajaran kooperatif tipe TGT dapat meningkatkan aktivitas dan pemahaman belajar siswa pada mata pelajaran Memperbaiki Sistem Injeksi Bahan Bakar Diesel kelas XI TKR 1 SMK N 1 Sawit. Hal ini dapat dibuktikan melalui data hasil penelitian sebagai berikut: (1) Aktivitas belajar pra siklus sebesar 45,45%. Siklus I aktivitas belajar mencapai 66,67%. Siklus II aktivitas belajar mencapai 81,82%. (2) Ketuntasan tes pemahaman belajar pada Prasiklus sebesar 48,48%. Siklus I ketuntasan tes pemahaman belajar siswa sebesar 66,67%. Siklus II ketuntasan tes pemahaman belajar siswa sebesar 81,82%.
Kata kunci: Teams Games Tournament, Aktivitas Belajar, Pemahaman Belajar, Penelitian Tindakan Kelas, Memperbaiki Sistem Injeksi Bahan Bakar Diesel
ABSTRACT
The objectives of this research are to investigate (1) the improvement of the learning activity on the topic of discussion of Diesel Fuel Injection System Repair of the students in Grade XI of Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit through the application of the cooperative learning model of the TGT type; and the improvement of the learning comprehension on the topic of discussion of Diesel Fuel Injection System Repair of the students in Grade XI Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit through the application of the cooperative learning model of the TGT type.
This research used the classroom action research with two cycles. Each cycle consisted of four phases, namely: planning, implementation, observation, and reflection. The subjects of this research were the students in Grade XI Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit. The sources of the data of research were observation sheet on the learning activity and the result of learning comprehension test. The data of research were collected through test non-test (observation sheet). The data of the former were validated with the content validity and those of the latter were validated with construct validity. The procedures of research consisted of a series of four activities, which were done in repeated cycle namely:  planning, implementation, observation, and reflection.
The application of the cooperative learning model of the TGT type can improve the students’ learning activity and learning comprehension on the topic of discussion of Diesel Fuel Injection System Repair of the students in Grade XI of Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit. In Pre-cycle the percentage of the students’ learning activity was 45.45%. Following the treatment, it became 66.67% in Cycle I and 81.82% in Cycle II respectively. In Addition, in Pre-cycle, the percentage of the learning comprehension was 48.48%. Following the treatment, it became 66.67% in Cycle I and 81.82% in Cycle II respectively.
Keywords:    TGT type, learning activity, learning comprehension, classroom action research, diesel fuel injection system repair