<![CDATA[Abstrak Jenis penelitian ini adalah penelitian tindakan kelas yang bertujuan untuk meningkatkan hasil belajar siswa kelas V SDN Tawangsari I Sidoarjo pada materi bangun ruang melalui pemanfaatan media tiga dimensi. Subjek dalam penelitian ini yaitu siswa kelas V SDN Tawangsari I Sidoarjo sebanyak 35 orang. Teknik pengumpulan data yang digunakan yaitu observasi, tes, dan dokumentasi. Analisis hasil tes dilakukan secara deskriptif kuantitatif. Hasil belajar siswa pada materi bangun ruang berperan sebagai objek penelitian. Hasil penelitian menunjukkan bahwa hasil belajar siswa pada materi bangun ruang meningkat melalui pemanfaatan media tiga dimensi. Nilai rata-rata hasil belajar siswa meningkat pada siklus II menjadi 85,71 dari siklus I sebesar 73,38, dengan peningkatan persentase ketuntasan siswa yang meningkat dari siklus I sebesar 64,7% menjadi 94,3% pada siklus II. Hasil tersebut diikuti dengan peningkatan presentase aktivitas guru sebesar 11% dan presentase aktivitas siswa sebesar 26,5%.AbstractThis research was classroom action research which aimed to improve the learning outcomes of the fifth grade students at SDN Tawangsari I Sidoarjo on geometry material through the use of three dimensional media. The subjects of this research were 35 fifth grade students of SDN Tawangsari I Sidoarjo. The data were collected through observation, test, and documentation. The method used was quantitative description. The students’ learning outcomes in geometry was as the object of this reasearch. The results of this study indicated that the students’ learning outcomes in geometry increased through the use of three dimensional media. The average value of the students’ learning outcomes increased in the second cycle to 85.71 from the first cycle which was only 73.38, along with the increase of the students’ percentage completeness that increased from the first cycle which was 64.7% to 94.3% in the second cycle. These results were followed by an increase in the teacher’ activities percentage about 11% and the students’ activities percentage 26.5%.]]>
