<![CDATA[This study was aim improve of the science process skill’s student through observation method. This study design was pretest-postest non equivalent group. Samples were VIIA and VIIB that chosen by purposive sampling. This research data the form of quantitative and qualitative data. Quantitative data obtained from the average value of test were analyzed by using t-test and U-test. Qualitative data obtained form the observation sheet of learning activities and questionnaire responses of students were analyzed descriptive. The results showed the science process skill’s of students was also improve with average N-gain 0.62. Learning activities student was also improve with average 86.96. Most students responded positively to the application of the observation method. Thus, it could be concluded that application observation method was influenced significan to improve the science process skill’s of student and activities students in the characteristics of living creatures subject matter. Penelitian ini bertujuan mengetahui pengaruh metode observasi terhadap keterampilan proses sains siswa. Desain penelitian adalah pretes-postes kelompok non ekuivalen. Sampel penelitian adalah siswa kelas VIIIA dan VIIIB yang dipilih secara purposive sampling. Data penelitian berupa data kuantitatif dan kualitatif. Data kuantitatif diperoleh dari rata-rata nilai tes yang dianalisis menggunakan uji-t dan uji-U. Data kualitatif diperoleh dari lembar observasi aktivitas belajar dan angket tanggapan siswa yang dianalisis secara deskriptif. Hasil penelitian menunjukkan keterampilan proses sains siswa mengalami peningkatan dengan rata-rata N-gain 0,62. Aktivitas belajar siswa mengalami peningkatan dengan rata-rata 86.96. Sebagian besar siswa memberikan tanggapan positif terhadap penerapan metode observasi. Dengan demikian, penerapan metode observasi berpengaruh signifikan dalam meningkatkan keterampilan proses sains siswa dan aktivitas belajar siswa pada materi pokok ciri-ciri makhluk hidup. Kata kunci : aktivitas belajar, keterampilan proses sains (KPS), metode observasi]]>
