Jenis Penelitian adalah Penelitian Tindakan Kelas (PTK). Penelitian ini bertujuan untuk Meningkatkan Hasil Belajar IPA Materi Alat Pernapasan Melalui Model Pembelajaran Snowball Throwing pada Siswa Kelas V-B SDN 030 Tarakan. Penelitian ini dilaksanakan dalam 2 siklus, mulai tanggal 22 Juli-22 September 2013. Subjek penelitiannya adalah siswa kelas V-B SDN 030 Tarakan dengan jumlah 22 siswa, dengan rincian 10 siswa perempuan dan 12 siswa laki laki.
Hasil penelitian yang telah dilakukan menunjukkan bahwa terjadi peningkatan hasil belajar siswa. Hal ini dapat dilihat dari persentase ketuntasan hasil belajar klasikal pada siklus I sebesar 59% meningkat menjadi 82% pada siklus II. Kesimpulan Penelitian Tindakan Kelas ini adalah model pembelajaran Snowball Throwing dapat meningkatkan hasil belajar siswa.

Kata Kunci: Hasil Belajar, Model Pembelajaran Snowball Throwing, Alat Pernapasan

The research design of thin research used Classroom Action Research (CAR). The objective of this research was to improve the Students’ Respiratory Resource through Cooperative Learning Snowball Throwing type at Fifth Grade Students of SD Negeri 030 Tarakan. The research was done 22 July to 22 September 2013 in even semester 2013/2014. This research was done into some steps; planning, implementing, observing and reflecting. The research instruments were an observation sheet and test. The number of students in one class consisted of 22 students. Based on the result of study in the first cycle the students’ score was 59% and the second cycle was 82% of the percentage of students who gained the minimum score. It indicates that students have gained the criteria of success in this research and the students’ motivation was rising and priding by implementing Cooperative Learning Snowball Throwing type. Keywords: Snowball Throwing, Students' Achievement, Respiratory