<![CDATA[The research purpose was to describe the ability of cooperative and the cooperative pattern among students at grade IV and V in Elementary School 2 Rajabasa Bandar Lampung in 2015/2016. This research used simple descriptive design. The sample of the research were fourth grade and fifth grade that were 94 students that chosen by using purposive sampling. The qualitative data were cooperative ability and students cooperative pattern that were obtained from observation sheets, students questionnaire, teachers interview, and documentation. Data was analyzed descriptively. The result of the research showed that students cooperative ability in science learning has high criteria and the score was 72,23%. Aspect of obey the rules was the highest percentage of students cooperative ability that was 77,49% with high criteria. There were four pattern of students cooperative pattern formed. The dominant cooperative pattern was spontaneous.Penelitian ini bertujuan untuk mendeskripsikan kemampuan kerjasama dan pola kerjasama siswa dalam pembelajaran IPA pada siswa kelas IV dan V SD Negeri 2 Rajabasa Bandar Lampung tahun ajaran 2015/2016. Desain penelitian menggunakan desain deskriptif sederhana. Sampel penelitian adalah siswa kelas IV dan V berjumlah 94 siswa yang dipilih menggunakan teknik purposive sampling. Data kualitatif berupa kemampuan dan pola kerjasama siswa, diperoleh dari lembar observasi, angket siswa, wawancara guru, serta dokumentasi, data kemudian dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa secara keseluruhan kemampuan kerjasama siswa dalam pembelajaran IPA berkriteria tinggi dan total skor sebesar 72,23%. Aspek taat aturan merupakan aspek kemampuan kerjasama siswa dengan persentase tertinggi yaitu 77,49% berkriteria tinggi. Pola kerjasama siswa yang terbentuk terdapat empat pola kerjasama. Pola kerjasama paling dominan yaitu pola kerjasama spontan.Kata kunci: diskusi, kemampuan kerjasama, pembelajaran IPA, pola kerjasama]]>
