Tujuan penelitian ini yaitu: (1) mendeskripsikan langkah-langkah penerapan metode Numbered Heads Together (NHT) dengan media grafis; (2) meningkatkan pembelajaran IPA tentang sumber daya alam pada siswa kelas IV SDN 1 Cangkrep Lor tahun ajaran 2014/2015; dan (3) mendeskripsikan kendala dan solusi penerapan metode Numbered Heads Together (NHT) dengan media grafis dalam peningkatan pembelajaran IPA tentang sumber daya alam.
Penelitian ini merupakan penelitian tindakan kelas kolaboratif yang dilaksanakan dalam tiga siklus. Setiap siklus terdiri dari dua pertemuan dan masingmasing pertemuan terdiri dari perencanaan, pelaksanaan, pengamatan, dan refleksi. Subjek penelitian ini adalah siswa kelas IV SDN 1 Cangkrep Lor tahun ajaran 2014/2015 sebanyak 35 siswa. Sumber data meliputi siswa, guru, teman sejawat, peneliti, dan dokumen. Teknik pengumpulan data menggunakan observasi, wawancara, dan tes. Validitas data dalam penelitian ini menggunakan triangulasi sumber dan triangulasi teknik. Analisis data yang digunakan yaitu teknik analisis data kuantitatif dan kualitatif.
Hasil penelitian menunjukkan bahwa: (1)  langkah-langkah penerapan metode Numbered Heads Together (NHT) dengan media grafis, yaitu (a) pembagian kelompok dan penomoran, (b) penyampaian materi menggunakan media grafis, (c) pemberian tugas/permasalahan dengan media grafis, (d) diskusi kelompok, (e) pemanggilan nomor siswa, dan (f) kesimpulan dengan media grafis; (2) penerapan metode Numbered Heads Together (NHT) dengan media grafis sesuai dengan langkah-langkah yang tepat dapat meningkatkan pembelajaran IPA tentang sumber daya alam pada siswa kelas IV SDN 1 Cangkrep Lor tahun ajaran 2014/2015, yaitu ketuntasan proses belajar siswa pada siklus I mencapai 72,86%, siklus II sebesar 83,56%, dan siklus III sebesar 89,74%. Ketuntasan hasil belajar siswa pada siklus I
yaitu 68,57%, siklus II mencapai 80,57%, dan siklus III sebesar 92,65% dengan nilai rata-rata hasil belajar siswa pada siklus I sebesar 68,43, siklus II sebesar 73,71, dan
siklus III sebesar 81,27; (3) kendala yang dihadapi dalam penerapan metode Numbered Heads Together (NHT) dengan media grafis, yaitu: (a) suara siswa kurang lantang saat mempresentasikan hasil diskusi; (b) beberapa siswa kurang memperhatikan saat presentasi hasil diskusi. Solusinya yaitu (a) guru meminta siswa bersuara lantang ketika  mempresentasikan hasil diskusi; (b) guru mengondisikan siswa memperhatikan presentasi dengan mengajak membahas bersama hasil diskusi.
Simpulan penelitian ini adalah penerapan metode Numbered Heads Together (NHT) dengan media grafis dapat meningkatkan pembelajaran IPA tentang sumber daya alam pada siswa kelas IV SDN 1 Cangkrep Lor tahun ajaran 2014/2015.

Kata Kunci: Numbered Heads Together (NHT), media grafis, IPA

The objectives of this research are: (1) to describe the stages of the application of Numbered Heads Together (NHT) method using graphic media; (2) to improve natural science learning by implementing Numbered Heads Together (NHT) method using graphic media for the fourth grade students of SDN 1 Cangkrep Lor in the academic year of 2014/2015; and (3) to describe problems and solutions on the application of Numbered Heads Together (NHT) method using graphic media in improving natural science learning about nature resource.
This research is collaborative classroom action research which conducted within three cycles. Each cycle consisted of two meetings consisting of: planning, action, observation, and reflection on each meeting. The subjects were the fourth grade students of SDN 1 Cangkrep Lor in the academic year of 2014/2015, amounting to 35 students. The sources of data were students, teacher, colleagues, researcher, and documents. The techniques of data collection were observation, interview, and test. The validity of the data in this research used triangulation of source and triangulation of technique. The analysis of data used quantitative and qualitative analysis data technique.
The results of the research indicate that: (1) the application of Numbered Heads Together (NHT) method using graphic media through the following stages: (a) the division of groups and numbering, (b) delivering material with graphic media, (c) giving the task/the problem with graphic media, (d) discussing group, (e) calling students number, and (f) conclusion with graphic media; (2) the application of Numbered Heads Together (NHT) method using graphic media implemented with appropriate stages can improve natural science learning about nature resource for the fourth grade students of SDN 1 Cangkrep Lor in the academic year of 2014/2015, namely: student learning process completeness in the first cycle reached 72,86%, second cycle at 83,56%, and third cycle at 89,74%. Student learning completeness in the first cycle namely 68,57%, second cycle reached 80,57%, and third cycle at 92,65% by average mark of student learning completeness in the first cycle at 68,43, second cycle at 73,71, and third cycle at 81,27; (3) the problems in the application of Numbered Heads Together (NHT) method using graphic media, namely: (a) students presented their result discussion not loudly; (b) there were some students pay less attention when presenting result of discussion. The solutions are (a) the teacher asks students for presented their result discussion loudly; (b) the teacher manages students for pay attention of presentation by invite to discuss together the result of discussion.  
The conclusions of this research are the application of Numbered Heads Together (NHT) method using graphic media can improve natural science learning about nature resource for the fourth grade students of SDN 1 Cangkrep Lor in the academic year of 2014/2015.

Keywords:  Numbered Heads Together (NHT), graphic media, natural science