ABSTRAK
Tujuan penelitian untuk meningkatkan kemampuan kognitif Fisika siswa kelas X MIA 1 SMA Negeri 1 Andong melalui model Discovery Learning  pada materi Alat Optik.
Penelitian menggunakan Penelitian Tindakan Kelas (Classroom Action Research) dengan model Kurt Lewin yang dilaksanakan dalam satu siklus. Pada satu siklus terdiri dari tahap perencanaan tindakan, pelaksanaan tindakan, observasi, dan refleksi. Subjek penelitian adalah siswa kelas X MIA 1 SMA Negeri 1 Andong Tahun Pelajaran 2014/2015 sebanyak 32 siswa. Data diperoleh melalui kajian dokumen, pre-test & post-test, observasi dan wawancara. Teknik analisis data yang digunakan adalah teknik analisis data kuantitatif dan kualitatif.
Berdasarkan analisis data dan pembahasan pada penelitian dapat disimpulkan bahwa: model Discovery Learning pada materi Alat Optik dapat meningkatkan kemampuan kognitif siswa kelas X MIA 1 SMA Negeri 1 Andong. Dapat dilihat dari persentase ketuntasan kemampuan kognitif Fisika siswa sebesar 78,13%.
Kata kunci: Model Discovery Learning, Alat Optik
ABSTRACT
The objectives of this research are (1) to improve the cognitive ability of Class X MIA 1 SMA N 1 Andong students through the remediation of learning physics model of discovery learning in optical,
This is a classroom action research with Kurt Lewin model which was conducted in two cycles. Each cycle consists of planning, implementing action, observation, and reflection. The subjects of this research were the students of Class X MIA 1 SMA N 1 Andong which consists of 32 students. The techniques of collecting data of this research are document studies, pre-test & post-test, observation, and interview. The techniques of analyzing data are quantitative and qualitative method.
Based on data analysis and discussion on this research, it can be concluded that: (1) the remediation learning model of discovery learning in optical can improve the cognitive ability of students of Class X MIA 1 SMA N 1 Andong. The improvement can be seen from the number of students who met the cognitive passing grade in the cycle I. In cycle I there were 78,13% of the student met the cognitive passing grade of all the students.
Keywords: Model Discovery Learning, Optical.