Meningkatkan Kemampuan Pemecahan Masalah Matematik Melalui Problem Posing

Wulan Izzatul Himmah, Muhammad Istiqlal

Abstract

Tujuan dari penelitian ini adalah untuk mengetahui keefektifan penerapan model pembelajaran problem posing tipe post solution posing terhadap kemampuan pemecahan masalah siswa pada salah satu SMP di Kota Semarang. Penelitian ini merupakan penelitian kuasi-eksperimen dengan desain pretest-postest. Pemilihan sampel ditetapkan dengan teknik random sampling dan diperoleh siswa kelas VII A sebagai kelompok eksperimen dan siswa kelas VII B sebagai kelompok kontrol. Instrumen yang digunakan untuk pengambilan data penelitian adalah tes kemampuan pemecahan masalah pada pokok bahasan segi empat sub pokok bahasan persegi panjang dan persegi. Uji yang digunakan untuk mengetahui adanya perbedaan rata-rata gain adalah uji t. Berdasarkan hasil penelitian, rata-rata gain kemampuan pemecahan masalah siswa yang memperoleh pembelajaran dengan model  pembelajaran problem posing tipe post solution posing adalah 13.91, sedangkan rata-rata gain kemampuan pemecahan masalah siswa yang memperoleh pembelajaran secara konvensional adalah 7.09. Dengan uji t terlihat bahwa rata-rata gain kemampuan pemecahan masalah siswa yang memperoleh pembelajaran problem posing tipe post solution posing lebih baik daripada siswa yang memperoleh pembelajaran secara konvensional.  Disarankan guru dapat terus mengembangkan pembelajaran dengan model  problem posing tipe post solution posing dan menerapkan pada materi lain.

The purpose of this study was to determine the effectiveness of applying the problem posing learning model type post solution posing to students' problem solving abilities in one of the junior high schools in the Semarang city. This research is a quasi-experimental study with a pretest-posttest design. Sample selection was determined by random sampling technique and was obtained by students of class VII A as an experimental group and students of class VII B as a control group. The instrument used for retrieval of research data is a problem solving ability test on the subject of rectangles. The test used to determine the difference in average gain is the t test. Based on the results of the study, the average gain problem solving ability of students who get learning with problem posing learning model type post solution posing is 13.91, while the average gain problem solving ability of students who obtain conventional learning is 7.09. With the t test it can be seen that the average gain of problem solving abilities of students who get problem posing learning model type post solution posing is better than students who get conventional learning. It is suggested that the teacher can continue to develop learning with problem posing learning model type post solution posing and apply it to other material.  

Keywords

Problem posing; Pemecahan masalah, Matematika

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