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All Journal Paradikma: Jurnal Pendidikan Matematika Educandumedia: Jurnal Ilmu Pendidikan dan Kependidikan
Nst, Mas Berlian
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Education Mathematics Social Sciences Other

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PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN PEMECAHAN MASALAH SISWA KELAS XI SMA NEGERI 4 BINJAI Dina Aulia Luthfiah; Simamora, Dhara Chiltya; Nst, Hikmah Maulia Sari; Nst, Mas Berlian
Educandumedia: Jurnal Ilmu pendidikan dan kependidikan Vol. 1 No. 1 (2022): April 2022
Publisher : Yayasan Insan Cipta Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61721/educandumedia.v1i3.69

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh Model Problem Based Learing (PBL) terhadap kemampuan pemecahan masalah matematika siswa SMA Negeri 4 Binjai. Penelitian ini adalah penelitian kuantitatif, dengan jenis penelitian eksperimen. Populasi dari penelitian ini adalah siswa kelas XI SMA Negeri 4 Binjai Tahun Pelajaran 2022/2023 dengan rata-rata usia 16 sampai dengan 17 tahun, yang dijadikan sampel dalam penelitian ini adalah 30 siswa kelas XI dengan 15 siswa kelas eksperimen yang diajar dengan model Problem Based Learning dan 15 siswa untuk kelas kontrol yang diajar secara konvensional. Instrumen tes yang digunakan untuk mengetahui kemampuan pemecahan masalah siswa dengan menggunakan tes berbentuk uraian. Pengujian hipotesis yang dilakukan menggunakan uji test “t”. Hasil temuan menunjukkan terdapat perbedaan rata-rata pada kelas eksperimen dan kelas kontrol. Pada kelas eksperimen diperoleh rata-rata pre-test sebesar 27,87 dan rata-rata post-test sebesar 83,40, pada kelas kontrol diperoleh rata-rata pre-test 21,07 dan rata-rata post-test 57,67. Berdasarkan hasil uji hipotesis pada kelas eksperimen diperoleh nilai t-hitung sebesar 14,358 dan t-tabel 1,701 sehingga t-tabel yaitu t-14,358>t-1,701 yaitu . Pada kelas kontrol diperoleh nilai t-hitung sebesar 10,092 dan t-tabel 1,701 sehingga t-hitung>t-tabel yaitu t-10,092>t-1,701 . Simpulan penelitian ini menjelaskan bahwa kemampuan pemecahan masalah siswa lebih baik ketika diajarkan dengan model Problem Based Learning.
The Effect of Problem Based Learning Models on Students' Mathematical Problem Solving Ability and Self Efficacy Nst, Mas Berlian; Surya, Edy; Khairani, Nerli
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 16 No. 2 (2023): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA (July - December 2023)
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v16i2.48284

Abstract

This research aims: (1) to determine whether problem-based learning models improve mathematical problem-solving abilities and self-efficacy; (2) to explore the interaction between students' initial mathematical abilities and the learning model. The study employed a quasi-experimental quantitative design, with ANOVA used for inferential data analysis. Fifty eighth-grade students from SMP Negeri 3 Aek Kuo in the academic year 2022/2023 were examined. The null hypothesis (H0) was accepted, and the alternative hypothesis (Ha) was rejected since the significant F-test value was 0.178 > 0.05, and the T-test value was 0.692 > 0.05, indicating no significant difference in the average scores between experimental classes I and II. PBL students demonstrated better performance in answering mathematical problems compared to those in the direct learning group. Experimental class 1 achieved a mastery level of 84%, while experimental class 2 achieved a mastery level of 64%. PBL learners exhibited higher self-efficacy compared to those learning through direct instruction. Hypothesis testing indicated that students in experimental class 1 had stronger confidence in mathematical problem-solving compared to students in experimental class 2. The problem-based learning (PBL) methodology did not have a significant impact on students' mathematical problem-solving abilities. Hypothesis testing using interaction analysis yielded a significance value of 0.730 > 0.05. Both PBL and students' basic mathematical abilities influenced self-efficacy. Interaction analysis indicated a significance value of 0.000 < 0.05.Keywords: Problem based learning, early math skills, math solving, self efficacy
Co-Authors Dina Aulia Luthfiah Edy Surya Khairani, Nerli Nst, Hikmah Maulia Sari Simamora, Dhara Chiltya