摘要：Penelitian ini bertujuan untuk mengetahui apakah penerapan model pembelajaran Group Investigation dapat meningkatkan hasil belajar dan aktivitas siswa pada materi bahan kimia dalam makanan di SMP N 4 Temanggung. Jenis penelitian adalah penelitian eksperimental menggunakan desain Control Group pretest-posttest. Sampel yang digunakan adalah kelas VIII C dan VIII D. Analisis uji t menunjukkan bahwa selisih post test- pre test kelas eksperimen berbeda dengan kelas kontrol. Selisih nilai post test-pre test dan nilai ketuntasan belajar kelas eksperimen lebih tinggi dibanding kelas kontrol. Peningkatan hasil belajar kelas eksperimen sebesar 0,59 sedangkan untuk kelas kontrol sebesar 0,48. Ketuntasan belajar pada kelas eksperimen (78,13%) lebih tinggi dibanding kelas kontrol (43,75%). Aktivitas siswa kelas eksperimen 71% (aktif) lebih tinggi dibandingkan kelas kontrol 55% (cukup aktif). Berdasarkan hasil tersebut dapat disimpulkan bahwa penerapan model pembelajaran Group Investigation dapat meningkatkan hasil belajar dan aktivitas siswa pada materi bahan kimia dalam makanan di SMP Negeri 4 Temanggung.
其他摘要：The purpose of this research was to confirm whether the use of Group Investigation learning model can improve the students’ activities and test score on the topic of chemistry in food at SMP N 4 Temanggung .The research was an experimental study using control group pretest posttest design. The samples were VIII C and VIII D class. The T-test analysis showed that there was a difference between the result of pretest and post test of control class anf experimental class. The margin of the pretest and posttest score of experimental class were higher than the control class.The learning result of experimental class was improved by 0.59 while control class was only 0.48. The total score of experiment class was (78.13%) higher than control class (43.75%). The activeness of experiment class (71%) was more than control class (55%). Based on the result,it can be concluded that the use of Group investigation learning model can improve the students’ score and activeness on the learning material of the chemistry in food l at SMP N 4 Temanggung.
其他关键词：activities;chemicals in food;group investigation model;learning outcomes
