PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIKA

Abstract

Abstrak

Penelitian ini bertujuan untuk mengetahui pengaruh penerapan model problem based learning terhadap kemampuan pemecahan masalah soal cerita matematika kelas IV SD Model Sleman Yogyakarta. Penelitian ini adalah penelitian Quasi Experimental, tipe NonequivalentControl Group Design.Subyek penelitian adalah siswa kelas IV SD Model dan obyek penelitian yaitu kemampuan pemecahan masalah soal cerita matematika.Instrumen yang digunakan adalah tes uraian dan lembar observasi.Validitas instrumen melalui expertjudgment dan validitas secara empirik.Teknik analisis data menggunakan t-testindependent yang sebelumnya telah diketahui normalitas dan homogenitas data. Diperoleh nilai rata-rata pada pre-test kelas eksperimen 66,00 dan nilai post-test 83,54, sedangkan kelas kontrol nilai pre-test 69,53 dan nilai post-test 77,42. Hal ini juga didukung oleh hasil uji gain yang menunjukkan kelas eksperimen sebesar 0,51 pada kategori sedang dan kelas kontrol sebesar 0,25 pada kategori rendah. Hasil penelitian menunjukkan bahwa ada pengaruh  penerapan model pembelajaran problem based learning terhadap kemampuan pemecahan masalah soal cerita matematika.

Kata Kunci: Problem Based Learning (PBL), Kemampuan Pemecahan Masalah, Soal Cerita Matematika

Abstract

This research aims at determining the effect of applying Problem Based Learning toward  problem solving skills of the mathematic in the fourth grade at SD Model Sleman Yogyakarta. This research was Quasi Experimental research with Untreated Control Group Design with Dependent Pretest and Posttest. The subject were the fourth grade at SD Model Sleman Yogyakarta that consisting of experiment class with twenty five students and control class with twenty four students. The research object was the problem solving skills of mathematic. The instruments of the research were essay test and observation sheet. The instrument validity were conducted by expert judgment and empiric validations. The techniquesdata analysis was the independent t-test which previously known by the normality and homogeneity data. The average pretest score of experiment class was 66,00 and posttest score was 83,54, while the average pretest score of control class was 69,53 and posttest score was 77,42. There were supported by the gain test that showed the experiment class of 0,51 in the medium category and the control class of 0,25 in the low category. The result of research shows that there is an effect of applying Problem Based Learning model toward the problem solving skills of the mathematic.

Keywords: problem based learning, problem solving skill of mathematic