Penelitian ini bertujuan untuk mengetahui efektivitas pembelajaran IPA pada model kooperatif tipe NHT dengan menggunakan pendekatan STM terhadap hasil belajar siswa. Populasi pada penelitian ini adalah siswa kelas IV SD Negeri Pangeranan 02 Bangkalan Tahun Ajaran 2015/2016 terdiri dari 34 siswa. Penelitian ini merupakan penelitian kuantitatif dengan metode penelitian True-Experimental Design dengan bentuk desain Pretest-Posttest Control Group Design. Penelitian ini menggunakan probability sampling yaitu dengan teknik simple random sampling, karena pada penelitian ini sampel yang digunakan sebanyak dua kelompok dengan pengambilan anggota sampel dari populasi dilakukan secara acak (random). Berdasarkan hasil penelitian meliputi: (1) Secara klasikal 82,35% siswa dinyatakan memiliki ketuntasan hasil belajar. (2) Aktivitas keterlaksanaan pembelajaran (aktivitas guru) diperoleh rata-rata sebesar 97,22% dan tergolong kategori sangat baik. (3) Aktivitas siswa diperoleh rata-rata sebesar 80,29% dan tergolong kategori sangat baik. (4) Respon siswa diperoleh 95,30% dan tergolong kategori sangat baik. Dengan demikian dapat disimpulkan bahwa model kooperatif tipe NHT dengan menggunakan pendekatan STM efektif terhadap hasil belajar.

This research is aims to determine the Effectiveness of the learning process of science at the Cooperative Model by NHT types (Numbered Head Together) with using STM approach (Science Technology Society) to students learning outcomes. The population of this research is 4th grade students of the State Elementary Shcool of Pangeranan 02 Bangkalan on Academic years 2015/2016 that consist of 34 students. This research is a quantitative research by using True Experimental Design in research method with form design of pretest-posttest control group design. This research uses probability sampling that is simple random sampling techniques because in this research used as a sample two group with members taking of sample from population was randomly. Based on the result of the research include : 1) Classically 82,35% students otherwise have mastery learning outcomes. 2) Implementation of learning activities (activities of teacher) obtained an average as big as 97,22% and including the categories of very good. 3) Activities of students obtained an average as big as 80,29% and including the categories of very good. 4) Student responses obtained as big as 95,30% and including categories of very good. Therefor, it can be concluded that cooperative model of NHT type by using STM approach can be effective to the student learning outcomes.

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