ABSTRAKPenelitian ini bertujuan untuk mendeskripsikan peningkatan aktivitas belajar siswa, keterampilan proses sains siswa (KPS) dan hasil belajar siswa melalui penerapan model Disecovery Learning. Penelitian ini termasuk penelitian tindakan kelas. Subjek penelitian ini adalah seluruh siswa kelas X IPA 3 yang berjumlah 30 siswa. Hasil penelitian menunjukkan bahwa nilai rata-rata aktivitas siswa pada siklus I termasuk dalam kategori cukup, kemudian menjadi baik pada siklus II dan semakin baik pada siklus III. Keterampilan proses sains yang diuji adalah keterampilan mengajukan pertanyaan, merumuskan hipotesis, merencanakan percobaan, menafsirkan dan berkomunikasi. Dari kelima keterampilan yang diuji, persentase peningkatan tertinggi dari siklus ke siklus adalah pada keterampilan merumuskan hipotesis, sedangkan keterampilan yang paling dikuasai siswa adalah pada keterampilan mengajukan pertanyaan. Hasil belajar siswa pada aspek pengetahuan secara keseluruhan terjadi peningkatan ketuntasan belajar siswa secara klasikal dari siklus I sampai siklus III. Pada siklus I diperoleh daya serap siswa sebesar 70,5 % dan ketuntasan belajar siswa sebesar 63,3 % (belum tuntas), meningkat pada siklus II diperoleh daya serap siswa sebesar 76,5 % dan ketuntasan belajar siswa sebesar 80 % (tuntas), dan meningkat lagi pada siklus III diperoleh daya serap siswa sebesar 83,6 % dan ketuntasan belajar siswa sebesar 100 % (tuntas). Berdasarkan hasil penelitian dapat disimpulkan bahwa melalui penerapan model Discovery Learning dapat meningkatkan keteampilan proses sains dan hasil belajar siswa.
ABSTRACTThis research was aimed to describe an enhancement of students' learning activities, students' science process skills and students' learning outcomes through model application of Discovery Learning. This research includes classroom action research. The subject this research was all students in X Science 3 with the total of 30 students.. The finding of this research indicated that the average values of students' activities in cycle I was categorized as enough, then became good in cycle II, and better in cycle III. Science process skills which were examined was the skills to propose a question, formulate hyphotheses, plan an experiment, interpret, and communicate. From those five skills examined, the highest enhancement percentage from cycle to cycle was on the skill of formulating hyphotheses, while the skill that mostly mastered by students was on the skill of proposing a question. The students' learning outcomes on the whole knowledge aspects were any enhancement of students' learning mastery classically from cycle I to cycle III. At the cycle I, it was obtained the students' absorption of 70.5% and students' learning mastery of 63.3% (incomplete), increased at the cycle II which was obtained the students' absorption of 76.5% and students' learning mastery of 80% (complete), and increased again at the cycle III which was obtained the students' absorption of 83.6% and students' learning mastery of 100% (complete). From the research findings, ...