Electronic Theses and Dissertation

Kemampuan pemodelan matematika adalah salah satu kemampuan yang dibutuhkan siswa dalam menyelesaikan suatu permasalahan dengan menyederhanakan kedalam model matematika. Namun, siswa masih kesulitan dalam menyelesaikan suatu permasalahan karena belum mampu menganasilis serta belum dapat menyederhanakan terlebih dahulu menjadi model matematika. Salah satu upaya untuk meningkatkan kemampuan pemodelan matematika siswa yaitu dengan menerapkan model Problem Based Learning. Tujuan dari penelitian ini yaitu untuk mengetahui peningkatan kemampuan pemodelan matematika siswa pada materi SPLDV melalui model Problem Based Learning di SMPN 1 Lhoknga. Metode penelitian menggunakan pendekatan kuantitatif dengan desain penelitian Pre-Eksperimental Design jenis One-Group Pretest-Posttest Design. Populasi dalam penelitian ini adalah seluruh siswa kelas VIII. Sampel dipilih secara acak, yaitu siswa kelas VIII-1 yang terdiri dari 31 siswa. Pengumpulan data menggunakan tes kemampuan pemodelan matematika. Soal tes berbentuk uraian dengan banyak soal yaitu 3 butir. Pengujian hipotesis menggunakan statistik parametrik uji-t pihak kanan. Hasil pengujian hipotesis diperoleh t_hitung=12,67. Dengan taraf signifikan 5% dan dk=28 diperoleh t_tabel=1,70. Karena t_hitung>t_tabel maka dapat disimpulkan bahwa ada peningkatan kemampuan pemodelan matematika siswa pada materi SPLDV melalui model Problem Based Learning di SMPN 1 Lhoknga.

Mathematical modeling ability is one of the abilities needed by students in solving a problem by simplifying into a mathematical model. However, students still have difficulty in solving a problem because they have not been able to analyze and have not been able to simplify first into a mathematical model. One of the efforts to improve students' mathematical modeling skills is by applying the Problem Based Learning model. The purpose of this study was to determine the improvement of students' mathematical modeling skills on SPLDV material through the Problem Based Learning model at SMPN 1 Lhoknga. The research method used a quantitative approach with a Pre-Experimental Design research design of the type One-Group Pretest-Posttest Design. The population in this study were all VIII grade students. The sample was randomly selected, namely students of class VIII-1 consisting of 31 students. Data collection used mathematical modeling ability test. The test questions were in the form of descriptions with many questions, namely 3 items. Hypothesis testing using parametric statistics right side t-test. The results of hypothesis testing obtained t_count=12.67 With a significant level of 5% and dk = 28, the t_table=1.70 was obtained. Because t_count>t_table, it can be concluded that there is an increase in student’s mathematical modeling skills on SPLDV material through the Problem Based Learning model at SMPN 1 Lhoknga.