Analisis Kemampuan Penalaran Matematis dan Kemandirian Belajar Siswa SMP pada Materi Persamaan Garis Lurus

Penelitian ini bertujuan untuk menganalisis kemampuan penalaran dan kemandirian belajar pada materi persamaan garis lurus siswa SMP. Metode penelitian ini menggunakan metode deskriptif kualitatif. Tempat penelitian dilaksanakan di SMP Negeri 5 Cimahi pada kelas VIII semester ganjil tahun ajaran 2017-2018. Populasi penelitian ini adalah siswa kelas VIII SMP Negeri 5 Cimahi pada materi Persamaan Garis Lurus. Subjek penelitian adalah siswa kelas VIII E. Untuk memperoleh data penelitian digunakan instrumen berupa tes soal uraian dan angket kemandirian belajar. Hasil penelitian didapat kesimpulan: (1) tingkat kemampuan penalaran matematis siswa dalam penyelesaian masih level rendah; (2) kesulitan siswa pada umunya belum memahami soal dan prakonsep masih rendah; (3) siswa belum tertanam rasa belajar secara mandiri. Kata kunci: kemampuan penalaran matematis, kemandirian belajar. ABSTRACT This study aims to analyze the ability of reasoning and self-regulated learning on the material of equations of straight lines of junior high school students. This research method using qualitative descriptive method. This research is conducted in SMP Negeri 5 Cimahi in Grade VIII of academic year 2017-2018. The population of this study is the students of class VIII SMP Negeri 5 Cimahi who have studied the material of the equation of straight line. The subject of the research is the students of class VIII E. To obtain the research data used the instrument in the form of test description and questionnaire self-regulated learning. The results of the research concluded: (1) the level of students' mathematical reasoning ability in the problem solving is still low level; (2) students' difficulties in general have not understood the problem and the preconception is still low; (3) students have not embedded the sense of learning independently. Keywords: mathematical reasoning ability, self-regulated learning.