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All Journal EDU-MAT: Jurnal Pendidikan Matematika EDUCATOR : Jurnal Inovasi Tenaga Pendidik dan Kependidikan
Petrus Kanisius Nama Doni
Universitas Pendidikan Indonesia
Education Mathematics Other

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EFEKTIVITAS METODE GASING DALAM MENINGKATKAN KEMAMPUAN NUMERASI SISWA DI SEKOLAH DAERAH 3T Petrus Kanisius Nama Doni; Sufyani Prabawanto; Lukman Lukman
EDU-MAT: Jurnal Pendidikan Matematika Vol 14, No 2 (2026)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/edumat.v14i2.25893

Abstract

Penelitian ini mengevaluasi efektivitas Program Persiapan Asesmen Numerasi Internasional berbasis metode GASING pada sebuah sekolah menengah pertama di daerah 3T. Penelitian menggunakan desain metode campuran dengan triangulasi konkuren. Komponen kuantitatif memakai rancangan praeksperimental satu kelompok dengan tes awal dan tes akhir. Sebanyak 54 orang mengikuti program, terdiri atas 48 peserta didik dan 6 pendidik pendamping; analisis utama melibatkan 40 peserta didik dengan data lengkap. Komponen kualitatif mencakup wawancara semiterstruktur terhadap delapan informan dan analisis tematik enam tahap. Data kuantitatif dianalisis menggunakan N-Gain dan uji Wilcoxon. Hasil menunjukkan peningkatan kemampuan numerasi berkategori tinggi (N-Gain = 0,84), dengan kelengkapan data 83,3% (40 dari 48 peserta didik). Perbedaan skor tes awal dan tes akhir signifikan secara statistik (p < 0,001), dengan ukuran efek besar (Cohen's d = 4,52; r ≈ 0,87). Analisis kualitatif menghasilkan empat tema: motivasi belajar, pembelajaran berbasis asesmen, dukungan kelembagaan, dan kepercayaan diri matematis. Temuan kedua komponen menunjukkan konvergensi. Karena tidak menggunakan kelompok kontrol, hasil ini merupakan bukti awal yang memerlukan pengujian lebih lanjut dengan desain terkontrol. Kata kunci: numerasi, metode GASING, mixed methods, sekolah terpencil Abstract: This study evaluated the effectiveness of an International Numeracy Assessment Preparation Program using the GASING method at a junior secondary school in a remote (3T). A concurrent triangulation mixed-methods design combined a quantitative one-group pretest–posttest study with qualitative interviews. The program involved 54 participants (48 students and six accompanying educators); the main quantitative analysis included 40 students with complete paired data. Eight informants participated in semi-structured interviews, which were examined through six-phase thematic analysis. Quantitative analysis used normalized gain (N-Gain) and the Wilcoxon signed-rank test. Results showed high-category numeracy improvement (N-Gain = 0.84), with 83.3% complete student data (40 of 48). Pretest–posttest score differences were statistically significant (p < .001), with large effect-size estimates (Cohen's d = 4.52; r ≈ .87). Four qualitative themes emerged: learning motivation, assessment-based instruction, institutional support, and mathematical self-confidence. Findings from both components were broadly convergent. As the study had no control group, these findings provide preliminary evidence of the program's potential and require confirmation through controlled designs. Keywords: numeracy, GASING method, mixed methods, remote schools
PENALARAN MATEMATIS SISWA PADA MATERI PLSV MELALUI METODE GASING BERBASIS PROBLEM-BASED LEARNING Petrus Kanisius Nama Doni; Sufyani Prabawanto; Lukman Lukman
EDUCATOR : Jurnal Inovasi Tenaga Pendidik dan Kependidikan Vol. 6 No. 4 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/educator.v6i4.16124

Abstract

Mathematical reasoning among junior high school students, particularly in Linear Equations in One Variable (LEOV), remains a challenge because classroom instruction often emphasizes procedural mastery. This study aimed to examine the effect of integrating the GASING (Gampang, Asyik, dan Menyenangkan) method with Problem-Based Learning (GASING-PBL) on students’ mathematical reasoning in LEOV. A quasi-experimental design with a nonequivalent control group was employed. The participants were 64 eighth-grade students at SMP Negeri 3 Ile Ape Timur, Lembata Regency, who were assigned to the GASING-PBL and conventional instruction groups, with 32 students in each group. Data were collected using a Mathematical Reasoning Test that demonstrated satisfactory content validity and reliability. The data were analyzed using a t-test, Cohen’s d, and normalized gain. The results showed that the GASING-PBL group achieved significantly higher posttest reasoning scores than the control group, with means of 78.43 and 65.21, respectively, p < .001, and d = 0.87. The normalized gain was 0.62 for GASING-PBL, categorized as moderate, compared with 0.39 for conventional instruction, categorized as low. Inductive and analogical reasoning showed the greatest gains. These findings indicate that GASING-PBL can serve as a contextual learning alternative for strengthening junior high school students’ mathematical reasoning in LEOV. ABSTRACT Kemampuan penalaran matematis siswa SMP, khususnya pada materi Persamaan Linear Satu Variabel (PLSV), masih perlu diperkuat karena pembelajaran cenderung menekankan penguasaan prosedur. Penelitian ini bertujuan menganalisis pengaruh integrasi metode GASING (Gampang, Asyik, dan Menyenangkan) dan Problem-Based Learning (GASING-PBL) terhadap kemampuan penalaran matematis siswa pada materi PLSV. Penelitian menggunakan desain kuasi-eksperimental dengan kelompok kontrol tidak ekuivalen. Subjek penelitian terdiri atas 64 siswa kelas VIII SMP Negeri 3 Ile Ape Timur, Kabupaten Lembata, yang terbagi menjadi kelompok GASING-PBL dan kelompok pembelajaran konvensional, masing-masing 32 siswa. Data dikumpulkan menggunakan Tes Penalaran Matematis yang telah memenuhi validitas isi dan reliabilitas. Analisis dilakukan melalui uji-t, ukuran efek Cohen’s d, dan normalized gain. Hasil menunjukkan bahwa kemampuan penalaran matematis kelompok GASING-PBL lebih tinggi secara signifikan dibandingkan kelompok kontrol, dengan skor pascates masing-masing 78,43 dan 65,21, p < 0,001, serta d = 0,87. Nilai normalized gain kelompok GASING-PBL sebesar 0,62 berada pada kategori sedang, sedangkan kelompok kontrol sebesar 0,39 berada pada kategori rendah. Penalaran induktif dan analogis menunjukkan peningkatan paling tinggi. Temuan ini menunjukkan bahwa GASING-PBL berpotensi menjadi alternatif pembelajaran kontekstual untuk memperkuat penalaran matematis siswa SMP pada materi PLSV.
Co-Authors Lukman Lukman Sufyani Prabawanto, Sufyani