Abstract
This study aimed to determine the effectiveness of Problem Based Learning with MURDER strategy on students mathematical concept understanding ability in SMP Negeri 2 Sokaraja Academic Year 2018/2019. The method used was experimental research. Population in the study were the eighth-grade students of SMP Negeri 2 Sokaraja. The sampling was done by cluster random sampling technique; class VIII A as an experimental class treated by using Problem Based Learning with MURDER strategy and class VIII B as a class controls that used conventional learning. That instrument used was a post test problem that measures the ability to understand mathematical concepts. Based on the result of the t-test analysis with the help of SPSS 25.0, the Sig (2-tailed) = 0.015. Because it uses the right-side test, the Sig (2tailed) value is divided by 2 so that it gets 0.0075.With α = 0.05 then the value of Sig (2-tailed) meant that Ho rejected. This meant that the ability of students to understand mathematical concepts who were exposed by Problem Based Learning with MURDER strategy were more improved from those who only follow conventional learning. Therefore, it could be concluded that Problem Based Learning with MURDER strategy affected the mathematical concept of understanding ability.
Highlights
This study aimed to determine the effectiveness of Problem Based Learning with MURDER strategy
The sampling was done by cluster random sampling technique
class VIII A as an experimental class treated by using Problem Based Learning with MURDER strategy and class VIII B
Summary
Penelitian ini menggunakan desain penelitian post test control only design. Peneliti mengambil populasi seluruh siswa kelas VIII SMP Negeri 2 Sokaraja tahun pelajaran 2018/2019 yang terdiri dari 8 kelas. Sampel dalam penelitian ini adalah dua kelas yang dipilih secara tekhnik cluster random sampling. Kelompok pertama dijadikan sebagai kelas eksperimen yang diberi perlakuan dengan menggunakan Problem Based Learning dengan strategi MURDER, sedangkan kelompok kedua dijadikan sebagai kelas kontrol yang diberi perlakuan dengan menggunakan model pembelajaran konvensional. Teknik pengumpulan data pada penelitian ini diperoleh melalui metode tes dan observasi. Tes dilakukan dengan menggunakan soal post test kemampuan pemahaman konsep matematis. Obervasi digunakan untuk memperoleh data aktivitas siswa dan guru selama proses pembelajaran. Tes diujicobakan kepada kelas yang telah menerima materi. Jika kedua data normal dan homogen, maka uji hipotesis menggunakan uji-t. Pengujian dalam penelitian ini menggunakan bantuan SPSS 25.0
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