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All Journal Jurnal Tarbiyah : Jurnal Ilmiah Kependidikan Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam
Andi Susanto
Universitas Islam Negeri Imam Bonjol Padang
Arts Humanities Education Mathematics

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The Application of The Polya's Steps Reviewed from Problem-Solving Ability in Two-Variable Linear Equation System (SPLDV) Nana Sepriyanti; Zulvia Trinova; Andi Susanto
Tarbiyah : Jurnal Ilmiah Kependidikan Vol 9, No 1 (2020): June
Publisher : Universitas Islam Negeri Antasari Banjarmasin, South Kalimantan, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18592/tarbiyah.v9i1.3543

Abstract

The ability of students in this school is low in understanding the questions given by the teacher. As a result they find it difficult to know the steps on how to solve the problem. Efforts that can be done are implementing Polya's steps.Quasi-experimental research was conducted in this study with the Randomized Control Group Only Design. Students of class VIII at this school are used as population. The experimental class is class VIIIA and the control class is class VIIIB. Final test data in the form of essays obtained were analyzed by t test. The result is the average problem solving ability with the application of Polya's steps, 78.23 and the control class, 72.38, with achievement in the experimental class 81% and in the control class, 48%. After being analyzed, t_count = 2.33 and t_table = 1.68 with a confidence level of 95% so that t_count > t_table (2.33 > 1.68), meaning that the proposed hypothesis is accepted and the ability of students in solving problems using Polya steps is higher rather than without applying these steps.
Lembar Kerja Peserta Didik Berbasis Project Based Learning yang Praktis dan Efektif Nia Manda Sari; Andi Susanto; Nita Putri Utami; Ibnul Anies
Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 14 No. 1 (2026): Al-Khwarizmi : Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam
Publisher : Prodi Pendidikan Matematika FTIK IAIN Palopo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24256/jpmipa.v14i1.8117

Abstract

Abstract: Mathematical problem-solving competency among seventh-grade students at MTsN 9 Padang Pariaman was identified as substantially lacking, primarily due to the lack of adequate teaching media. The primary purpose of this investiation was to construct a Project Based Learning (PjBL)-oriented Student Worksheet (LKPD) adhering to the standards of validity, practicality, and effectiveness. Data were gathered through interviews, observation, validation sheets, practicality questionnaires, and written assessments. Results demonstrated that the developed LKPD achieved a high validity level with a mean score of 87.31%. In terms of practicality, educators assigned a mean score of 89%, while learners yielded 84.67%. Regarding effectiveness, the instrument attained an N-Gain coefficient of 0.66 with a percentage of 65.76%, corresponding to a moderate classification. These outcomes affirm that the PJBL-based LKPD successfully enhances students' mathematical problem-solving competencies while satisfying the established benchmarks of validity, practicality, and effectiveness.   Abstrak: Kemampuan pemecahan masalah matematis peserta didik kelas VII MTsN 9 Padang Pariaman teridentifikasi masih rendah, yang utamanya disebabkan oleh belum tersedia media pembelajaran yang memadai. Tujuan utama penelitian ini untuk merancang dan mengembangkan LKPD berbasis Project Based Learning (PjBL) yang memenuhi standar valid, praktis, dan efektif. Instrumen penelitian terdiri dari wawancara, observasi, formulir validitas, kuesioner praktikalisasi, dan soal tes tertulis. Hasil analisis mengungkapkan LKPD berbasis PjBL memiliki tingkat validitas yang sangat baik dengan rata-rata skor 87,31%. Dari segi praktikalitas, LKPD ini dinilai sangat praktis oleh pendidik dengan rata-rata skor 89%, dan oleh peserta didik dengan rata-rata skor 84,67%. Efektivitas LKPD ini tergolong cukup baik berdasarkan skor N-Gain sebesar 0,66 (kategori sedang) dan persentase N-Gain sebesar 65,76% (kategori cukup efektif). Dengan demikian, LKPD berbasis PjBL yang dikembangkan terbukti mampu meningkatkan kemampuan pemecahan masalah matematis peserta didik sekaligus memenuhi kriteria valid, praktis, dan efektif.
Co-Authors Ibnul Anies Nana Sepriyanti Nia Manda Sari Nita Putri Utami Zulvia Trinova