Penelitian ini merupakan penelitian pengembangan (Research and Development) yaitu pengembangan perangkat pembelajaran berbasis model kooperatif tipe Student Teams Achievement Division (STAD) pada materi sistem pernapasan pada manusia dengan tujuan: (1) Untuk mengembangkan perangkat pembelajaran berbasis model kooperatif tipe Student Teams Achievement Division (STAD), (2) Untuk menilai kualitas perangkat pembelajaran yang memenuhi kriteria valid, praktis, dan efektif. Pengembangan perangkat pembelajaran menggunakan model pengembangan 4-D, yaitu define, design, develop, dan disseminate. Perangkat yang dikembangkan divalidasi para pakar pendidikan dan diuji coba pada subjek uji coba siswa SMP KUMI Tarakan. Desain uji coba pada penelitian ini menggunakan One-Shot Case Study. Data penelitian dianalisis menggunakan teknik analisis statistik deskriptif. Hasil pengembangan perangkat pembelajaran menunjukkan bahwa keseluruhan komponen perangkat pembelajaran berbasis model kooperatif tipe Student Teams Achievement Division (STAD) dinyatakan valid, praktis, dan efektif. Hasil belajar siswa meningkat dengan prosentase 100%, artinya hasil belajar telah memenuhi syarat ketuntasan individual minimal 75 dan ketuntasan secara klasikal minimal 75% dari nilai KKM.

The study was a research and development which develop the learning based on cooperative Student Teams Achivement Division (STAD) type on the material in the human respiratory system. The study aimed at (1) Developing the learning package based on cooperative Student Teams Achivement Division (STAD) type, (2) Assess the quality of learning tools that meet the criteria for a valid, practical, and efeective. Development of a learning device is tools using 4-D model of the development of the model is: define, design, develop, and disseminate. The develop devices were validated by educational experts and were tested on student test subjects SMP KUMI Tarakan. Try-out design in this study used One-Shot Case Study. The research data were analyzed by using the descriptive of statistical analysis techniques. The result of learning package trough based on cooperative Student Teams Achivement Division (STAD) type was confirmed as valid, practical and effective. Student’s learning outcomes with the total mastery percentage 100% meaning that student’s learning outcomes has met the terms of individual mastery minimally 75 and classical mastery minimally 75% from the KKM value.