PENGARUH MODEL PROBLEM BASED LEARNING (PBL) BERBASIS LKS TERHADAP KEMAMPUAN PENALARAN MATEMATIS SISWA

Abstract

Penelitian ini bertujuan untuk mengetahui terdapat atau tidaknya pengaruh penggunaan model Problem Based Learning berbasis LKS terhadap kemampuan penalaran matematis siswa di SMP Negeri 227 Jakarta. Penelitian ini merupakan penelitian kuantitatif menggunakan metode penelitian jenis Quasy Experimental dengan tipe The Nonequivalent Posttest-Only Control Group Design. Populasi penelitian ini mencakup siswa kelas VII SMP Negeri 227 Jakarta pada semester genap tahun ajaran 2019/2020. Sampel yang diteliti sebanyak 62 siswa dari kelas VII-A dan VII-D. Teknik pengambilan sampel menggunakan metode cluster random sampling. Instrumen penelitian berupa soal uraian sebanyak 7 soal. Instrumen terlebih dahulu diuji coba di SMP Negeri 124 Jakarta dengan 24 siswa. Uji prasyarat yang dilakukan yaitu uji normalitas, kemudian diperoleh data berdistribusi normal dari kelas eksperimen dan kelas kontrol. Uji hipotesis menggunakan uji Komparatif Dua Sampel menghasilkan   yang mengakibatkan tolak  pada taraf signifikasi 5% dengan effect Size sebesar 0,66 yang tergolong sedang. Hasil penelitian ini dapat disimpulkan bahwa terdapat pengaruh model Problem Based Learning berbasis LKS terhadap kemampuan penalaran matematis siswa di SMP Negeri 227 yang tergolong sedang.

This study aims to determine the influence of problem based learning with student worksheet to the student ability of mathematical reasoning at 227 junior high school Jakarta. This study is quantitative research used quasi experimental with type the Noneqyivalent Posttest-Only Control Group Design. The population of this study included grade VII students of  227 junior high school Jakarta in the second semester of the 2019/2020 academic year. The samples of this research are 62 students from VII-A class and VII-D class. The sampling technique used the cluster random sampling method. The research instrument was a description of 7 questions. The instrument was first tested at 124 junior high school Jakarta for 24 students.The prerequisite test carried out is the normality test, then obtained data that is normally distributed from the experimental class and the control class. Hypothesis testing using the Two-Sample Comparative test results in which results in rejecting at the 5% significance level with an effect Size of 0.66 which is classified as moderate. The results of this study can be concluded that there is an effect of the LKS-based Problem Based Learning model on the students' mathematical reasoning ability in 227 junior high school jakarta which is classified as moderate.