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Analisis Deskriptif Kemampuan Literasi Matematis Siswa Kelas VII dalam Menyelesaikan Soal Cerita Yanamo, Anggun Marwah Silfana T; Rafiq Badjeber; Yulia, Yulia
Mandalika Mathematics and Educations Journal Vol 8 No 1 (2026): Edisi Maret
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v8i1.11532

Abstract

Penelitian ini mengkaji kemampuan literasi matematis siswa kelas VII dalam menyelesaikan soal cerita yang dilatarbelakangi oleh masih rendahnya kemampuan siswa dalam memahami permasalahan kontekstual dan mentransformasikannya ke dalam model matematika. Penelitian ini bertujuan mendeskripsikan kemampuan literasi matematis siswa berdasarkan indicator memahami konteks masalah, melakukan matematisasi, menggunakan konsep dan prosedur matematika, serta  menafsirkan hasil penyelesaian. Penelitian menggunakan pendekatan deskriptif kualitatif yang dilaksanakan di MTs Nida’ul Khairaat Pombewe dengan subjek 30 siswa kelas VII yang dipilih melalui purposive sampling. Pengumpulan data dilakukan melalui tes tertulis berupa tiga soal cerita matematika dan wawancara terhadap tiga siswa yang mewakili kategori kemampuan rendah, sedang, dan tinggi. Analisis data dilakukan melalui reduksi data, penyajian data, dan penarikan kesimpulan, sedangkan keabsahan data diperoleh melalui triangulasi sumber dan member check. Hasil penelitian menunjukkan bahwa kemampuan literasi matematis siswa terbagi ke dalam tiga kategori, yaitu rendah (46,7%), sedang (30%), dan tinggi (23%). Siswa pada kategori rendah mengalami  kesulitan dalam memahami konteks masalah dan membangun model matematika, siswa kategori sedang mampu mengidentifikasi informasi namun masih lemah dalam penalaran dan interpretasi, sedangkan siswa kategori tinggi menunjukkan strategi penyelesaian yang lebih sistematis dan reflektif. Temuan ini memberikan Gambaran empiris mengenai profil literasi matematis siswa serta mengimplikasikan pentingnya pembelajaran berbasis masalah kontekstual dan pemberian Latihan soal literasi matematis secara berkelanjutan.
Profile of Seventh-Grade Middle School Students' Understanding of Fractions Siva Natun; Rafiq Badjeber; Yulia Yulia
JURNAL PENDIDIKAN MATEMATIKA Vol. 10, No. 1: May 2026
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/kontinu.10.1.111-122

Abstract

Abstract. This study aims to describe seventh-grade students' understanding of fractions at SMP. This study employs a descriptive qualitative approach and a case study design, with three students as subjects classified into high, medium, and low categories. Data were collected through tests, interviews, and documentation. The study's results show that students' understanding of fractions varies. Students in the high category can explain and apply the concept of fractions effectively. Students in the medium category still have difficulty distinguishing between types of fractions, but can explain the meaning of a fraction and give everyday examples. Meanwhile, students in the low category show limited understanding of the concept, as they still have difficulty explaining fractions and are therefore unable to apply it effectively.Keywords: Fraction concepts, Conceptual understanding, Mathematics learning,  Junior high school students
GEMA: Google Site for Education in Mathematic and Algebra to Enhance Students’ Critical Thinking Fatimah, Siti Lista; Rafiq Badjeber; Riska Elfira
Desimal: Jurnal Matematika Vol. 9 No. 1 (2026): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v9i1.30785

Abstract

This study addresses the persistent challenge of developing students’ critical thinking skills in mathematics, particularly in algebra, within increasingly digital learning environments. It aims to examine how a structured digital learning environment, GEMA (Google Sites for Education in Mathematics and Algebra), supports the development of students’ critical thinking processes. A quasi-experimental design with a non-equivalent control group was employed, involving an experimental group using GEMA and a control group receiving conventional instruction. Data were collected using a validated critical thinking test covering four indicators: interpretation, analysis, evaluation, and inference. The results indicate that the experimental group achieved a higher N-Gain score (0.7572, high category) compared to the control group (0.6553, medium category). Inferential analysis using an independent samples t-test revealed a statistically significant difference between groups (p = 0.044), confirming the effectiveness of the intervention. In addition, the data distribution met normality and homogeneity assumptions, supporting the validity of the statistical analysis. The most substantial improvements were observed in evaluation and inference, suggesting that the structured digital environment supports deeper reasoning processes rather than surface-level understanding. These findings indicate that the effectiveness of digital learning is not determined solely by technological features, but by the extent to which instructional design aligns with cognitive processes. In conclusion, GEMA represents an effective and pedagogically grounded approach to enhancing critical thinking in mathematics, contributing to a more nuanced understanding of how digital environments can function as cognitive mediators in supporting higher-order thinking skills.
The Effect of The Wordwall Educational Game on Students’ Mathematical Understanding of Integer Addition and Subtraction Hairunnisa, Zazkia; Badjeber, Rafiq; Elfira, Riska
Jurnal Likhitaprajna Vol 28 No 1 (2026): April 2026
Publisher : FKIP Universitas Wisnuwardhana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/likhitaprajna.v28i1.964

Abstract

Students’ understanding of integer addition and subtraction at the junior high school level is still limited, even though these topics are fundamental in mathematics. Engaging learning media, such as the educational game Wordwall, is believed to support a more effective mathematical understanding. This study aims to examine the effect of the Wordwall educational game on students’ mathematical understanding. The method used in this research is a quasi-experimental design with a nonequivalent control group design. The research population consisted of seventh-grade students at SMP Negeri 3 Palu, with two classes selected as the sample: Class VII I as the experimental group and Class VII K as the control group. Data were collected through mathematical understanding tests that had met the standards of validity and reliability. The results indicate that the use of the Wordwall educational game enhances student engagement and participation; however, no significant difference was found between the experimental and control classes in terms of mathematical understanding. The Mann–Whitney U test yielded a p-value of 0.644, which is greater than the significance level (p > 0.05). This is believed to be influenced by differences in students’ prior knowledge, the relatively short duration of the media’s use, and the media’s lack of suitability for visualizing mathematical concepts. Consequently, the use of Wordwall did not have a significant effect on students’ mathematical understanding of integer addition and subtraction.
How do prospective mathematics teachers approach proof and refutation? A focus on abductive reasoning Badjeber, Rafiq; Nursupiamin; Subekhi, Sandi Tri
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 9 No. 1 (2026): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v9i1.3882

Abstract

This study aims to explore the abductive reasoning strategies used by prospective mathematics teachers in proving and refuting mathematical statements. This study used a qualitative method with a case study design. Fourteen third-year prospective mathematics teachers were involved in this study and were then grouped according to the characteristics of the type of abductive reasoning they used. Data collection techniques included tests given to all prospective mathematics teachers and interviews conducted with five prospective mathematics teachers selected based on their type of abductive reasoning. The data obtained was analyzed through stages that included data condensation, data display, and conclusion drawing. Technique triangulation was used to check the validity of the research findings. In general, it was found that the types of abductive reasoning strategies used by prospective mathematics teachers in proving included fact optimization and mistaken fact. Meanwhile, in refuting mathematical statements, there are three types of abductive reasoning used by students, consisting of fact optimization, mistaken fact, and factual error. The results of this study provide insight into how abductive reasoning contributes to formulating mathematical conjectures and can help educators design relevant learning strategies to support the improvement of students' proof and refutation abilities