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Melinda Rismawati
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Prodi Pendidikan Matematika STKIP Persada Khatulistiwa Sintang Jl. Pertamina KM 4, Sengkuang, Kecamatan Sintang, Kapuas Kanan Hulu, Kabupaten Sintang, Kalimantan Barat
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J-PiMat : Jurnal Pendidikan Matematika
Published by STKIP Persada Khatulistiwa Sintang
ISSN : -     EISSN : 26847981     DOI : -
Core Subject : Education,
Education Mathematics
Journal of Mathematics Education (J-PiMat) (e-ISSN: 2684-7981) is a scientific journal that publishes scientific articles from research, literature studies, ideas, theoretical applications, critical analysis studies, and class action studies in the science of Mathematics Education. J-PiMat publishes twice a year, May and November, published by the Mathematics Education Program, Teacher Training and Education Faculty, STKIP Persada Khatulistiwa Sintang, Indonesia.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 24 Documents
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Search results for , issue "Vol 8, No 1 (2026): J-PiMat" : 24 Documents clear
Pengaruh Model Discovery Learning Berbantuan Liveworksheets Terhadap Berpikir Kritis dan Efikasi Diri Permatasari, Ni Wayan Intan; Santyasa, I Wayan; Agustini, Ketut; Parwati, Ni Nyoman; Sudarma, I Komang
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6370

Abstract

Critical thinking skills and self-efficacy play a crucial role in mathematics learning; however, both remain relatively low due to the dominance of conventional methods and the limited use of technology. This study aims to analyze the effect of Discovery Learning with Liveworksheets (DLLW), Discovery Learning (DL), and Direct Instruction (DI), while controlling for prior knowledge. This study employed a quasi-experimental design with data analysis conducted via MANCOVA by involving prior knowledge as a covariate. The analysis was performed using SPSS at a significance level of 0.05. The sample consisted of 135 seventh-grade students divided into three groups. Research instruments included a valid and reliable critical thinking skills test and a self-efficacy questionnaire. The analysis results indicated significant simultaneous differences among the groups. Further tests revealed that the DLLW group significantly outperformed both the DL and DI groups in both critical thinking skills and self-efficacy. These findings indicate that the integration of Discovery Learning with Liveworksheets is more effective than the comparison groups in improving students’ critical thinking skills and self-efficacy.Keyword: Discovery Learning, Liveworksheets, Critical Thinking, Self-Efficacy.
Efektivitas Model Aktivitas, Refleksi, Konsep, Aplikasi (ARKA) pada Pembelajaran Matematika Sekolah Dasar Maharani, Balqis; Nurbayyinah, Fadliyah; Iqomah, Siti Zulfa Nurul; Nazihah, Salma; Putra, Karantiano S.
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6324

Abstract

Previous studies have proven the success of the Activity, Reflection, Concept, and Application (ARKA) model in religious education, yet its application in exact sciences remains underexplored. Therefore, this study aims to analyze the effectiveness of the ARKA model as a novel strategy in mathematics learning for grades I–III at SD GIS Prima Insani. Effectiveness in this descriptive qualitative study was operationally measured by indicators of learning objective achievement and classroom management changes. Data were collected through observations, interviews, and document reviews involving classroom teachers, mathematics teachers, and school management. Data analysis involved data reduction, display, and conclusion drawing, validated through source triangulation. Results indicate that the ARKA model is effectively implemented systematically as it aligns with the cognitive characteristics of elementary students. Based on field data, this model specifically yields a positive impact by increasing active participation and strengthening students' understanding of mathematical concepts. Initial time management challenges can be overcome with school system support. Ultimately, the ARKA model is relevant as an adaptive alternative strategy for basic mathematics learning, aligning with the principles of the Merdeka Curriculum.Keyword: Merdeka Curriculum; ARKA Model; Mathematics Learning; Conceptual Understanding; Lower Grade.
Pengaruh Discovery Learning dengan Pendekatan Culturally Responsive Teaching terhadap Kemampuan Pemahaman Matematis Yanuar, Reza Dwi; Hidayat, Edi; Madawistama, Sri Tirto
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6163

Abstract

This study aimed to investigate the effect of the Discovery Learning model integrated with a Culturally Responsive Teaching (CRT) approach on students’ mathematical understanding of systems of linear equations in two variables. An experimental method with a posttest-only control group design was employed. Data were collected using an essay-type test of mathematical understanding developed based on established indicators of mathematical comprehension. The population consisted of all ninth-grade students of SMP Negeri 8 Tasikmalaya in the 2025/2026 academic year, comprising 11 classes. Samples were selected through simple random sampling, resulting in class IX-J as the experimental group and class IX-H as the control group. Data analysis involved prerequisite tests of normality and homogeneity, followed by hypothesis testing using an independent samples t-test. The results showed that the Discovery Learning model integrated with the CRT approach had a significant effect on students’ mathematical understanding compared to Direct Instruction with a scientific approach. The t-test yielded a calculated value of 4.189 exceeding the critical value of 1.672, leading to the rejection of the null hypothesis. The coefficient of determination indicated that the treatment accounted for 23.23% of the variance in students’ mathematical understanding.Keyword: CRT, Discovery Learning, Mathematical Understanding Ability.
Analisis Representasi Visual Siswa Dalam Pembelajaran Matematika Berbasis Etnomatematika Digital Handayani, Karlina; Fauziah Iskandar, Ratu Sarah; Fadillah, Ahmad
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6430

Abstract

This study addresses the issue of students’ low ability in constructing meaningful mathematical visual representations, which are often limited to reproductive forms. To overcome this, ethnomathematics is utilized as an approach to relate mathematical concepts with local cultural contexts, making learning more contextual and meaningful. The purpose of this research is to explore how students construct mathematical visual representations through ethnomathematics-based learning supported by digital media. This study employs a descriptive qualitative approach involving tenth-grade students at MAN 2 Kota Tangerang selected purposively. Data were collected through classroom observations, documentation of students’ work, and interviews, and analyzed through data reduction, data display, and conclusion drawing. The findings reveal that ethnomathematics facilitates students in recognizing patterns and transforming cultural visuals into mathematical representations. However, students demonstrate varying levels of ability, ranging from reproductive, transitional, to conceptual stages. While ethnomathematics shows strong potential in improving students’ visual representation skills, appropriate scaffolding is still required to support deeper conceptual understanding. These results highlight the importance of integrating ethnomathematics into mathematics learning to foster more meaningful and contextual comprehension.Keyword: visual mathematical representation; digital ethnomathematics
Kecemasan Matematika Siswa Indonesia: Analisis Data PISA dan Rekomendasi Strategi Pembelajaran Marfuah, Lutfi; Widjajanti, Djamilah Bondan
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6346

Abstract

Mathematics anxiety is one of the factors that can hinder students’ learning processes and outcomes. This study aims to analyze the level of mathematics anxiety among Indonesian students based on Programme for International Student Assessment (PISA) 2022 data, identify its contributing factors, and formulate appropriate instructional strategies to address it. This research employs a mixed methods approach with a sequential explanatory design through the analysis of PISA data, the distribution of mathematics anxiety questionnaires, and a literature review. The results indicate that the level of mathematics anxiety among Indonesian students falls within the low to moderate category, characterized by feelings of tension, nervousness, and helplessness when solving mathematics problems. The main contributing factors include lack of learning preparation, rapid delivery of instructional material, difficulty in recalling concepts or formulas, and environmental pressure. These findings suggest that mathematics anxiety is influenced not only by cognitive aspects but also by psychological and pedagogical factors. Therefore, comprehensive instructional strategies are needed, including enhancing students’ motivation and learning skills, implementing student-centered learning approaches, and creating a positive learning environment. These efforts are expected to reduce mathematics anxiety and improve the quality of mathematics learning.Keyword: PISA, Mathematics anxiety, Indonesian students, instructional strategies
Pola Kesalahan Siswa Pada Materi Peluang: Kajian Teori Newman Berdasarkan Gaya Kognitif Putri, Ananda Wahyu Sailia; Prastiwi, Lusiana; Siolimbona, Dedi Rahman
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6254

Abstract

The high perception of difficulty in mathematics stems from its abstract nature, leading to a high rate of student errors. One factor influencing this is individual cognitive style. This study aims to examine students errors in solving probability problems using the Newman procedure from a cognitive style perspective. This study employs a descriptive qualitative approach. Data were collection through the GEFT test, a written probability test, and semi structured interviews. The research subjects consisted of two student from class XII-3 selected through purposive sampling based on following criteria: (1) into the field-independent or field-dependent category, (2) have a good comunication according to the teachers instructions. Data analysis was conducted through the stages of data reduction, data presentation, and conclusion drawing. The findings reveal that students with a field independent cognitive style made errors in transformation, process skills, and encoding. Meanwhile, students with a field dependent cognitive style made errors in comprehension, transformation, process skills, and encoding. These errors were caused by limited mastery of the material, low accuracy, and external influences. The result are expected to assist teachers in designing instructional strategies aligned with students cognitive style to reduce error in problem solving.Keywords: Newman Error Analysis, Probability, Cognitive Style
PENGEMBANGAN GAME BERBASIS KEARIFAN LOKAL KALIMANTAN TENGAH UNTUK MENINGKATKAN NUMERASI SISWA SMP Winata, Rahmat; Friantini, Rizki Nurhana; Hidayat, Dina Damiyanti; Anugrah, Siti Dian; Agustina, Lisa; Novan, Christian
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6365

Abstract

This research is intended to design and develop an educational mathematics game based on the local wisdom of Central Kalimantan to improve junior high school students' numeracy, named GEMALOKA (Game Edukasi Matematika Lokal Kalimantan Tengah). This research employs a Research and Development (R&D) approach using the Thiagarajan 4D model, which includes the stages of Define, Design, Develop, and Disseminate. The participants in this study were seventh-grade students of SMP Negeri 6 Palangka Raya. The data were collected through expert validation sheets, student response questionnaires, and numeracy ability tests. The results showed that: (1) The GEMALOKA product was declared highly feasible based on media expert validation (92.6%) and material expert validation (90.6%); (2) The game was proven effective in improving students' numeracy, as indicated by a significant difference (sig. 0.043) between the experimental group (mean 74.93) and the control group (mean 66.88), as well as an N-Gain score of 0.4125 (moderate category); (3) Students’ responses toward the game were categorized as good (78.63%). Therefore, GEMALOKA is considered a valid, practical, and effective learning medium for enhancing students' numeracy skill.Keywords: educational game, mathematics, local wisdom, numeracy.
Common Pitfalls in Mathematical Induction Lestary, Ratnah; Apriyanto, Heri
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6252

Abstract

Many students encounter difficulties when learning the material on mathematical induction. A lack of understanding of the principles of mathematical induction leads students to make errors when attempting to prove mathematical statements repeatedly. To help students avoid these pitfalls, it is essential to analyze common pitfalls that frequently occur in the proof process using mathematical induction. This study employed a qualitative approach, utilizing a case study design, to analyze the answer sheets of 56 students from the first semester of the Mathematics Education program. The answers were categorized into five groups based on the types of difficulties encountered. From each category, one information-rich case was selected for further interviews. The research revealed several common pitfalls in mathematical induction: (1) failure to write the complete mathematical statement to be proven, (2) misunderstanding the importance of defining the domain of numbers, (3) using examples to prove the mathematical statement, (4) pitfall due to lack of metacognitive control, and (5) performing operations on both the left and right sides of the mathematical statement in the second stageKeyword: Error Analysis; Mathematical Proof; Mathematical Induction; Pitfall
PENGEMBANGAN E-MODUL INTERAKTIF BERBANTUAN UNITY PADA MATERI SISTEM PERSAMAAN LINEAR DUA VARIABEL Septiani, Alliya Putri; Herawati, Linda; Madawistama, Sri Tirto
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6245

Abstract

This study aims to describe the development process and test the effectiveness of interactive e-modules assisted by Unity on Two Variable Linear Equation System (SPLDV) material. The research method used is Research and Development (R&D) with the Luther-Sutopo development model, which includes six stages, namely concept, design, material collecting, assembly, testing, and distribution. Data were collected through interviews, feasibility questionnaires, response questionnaires, and learning outcome tests. The research instruments involved media and material expert validation sheets to assess technical and content quality, as well as response questionnaires for teachers and ninth-grade students at SMP Negeri 2 Ciamis. The results showed that the Unity-assisted interactive e-module was deemed “Highly Feasible” by media and material experts. The responses from teachers and students showed a very high level of practicality in the learning process. In addition, this e-module proved to be effective in SPLDV material. The final product was distributed in an offline application format that can be accessed via smartphone to support the learning process. Directly, the implementation of this e-module facilitates students' independence and interest in learning mathematics, as well as providing a practical digital teaching media solution for teachers without internet access constraints.Keyword: e-module, luther-sutopo, research and development, SPLDV, Unity
Pengembangan E-LKPD Berbasis Etnomatematika Pada Materi Pola Bilangan SAADAH, ALYA NUR; Loviana, Selvi
J-PiMat : Jurnal Pendidikan Matematika Vol 8, No 1 (2026): J-PiMat
Publisher : Prodi Pendidikan Matematika STKIP Persada Khatu;istiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/j-pimat.v8i1.6380

Abstract

This study aims to develop an ethnomathematics-based Electronic Student Worksheet (e-LKPD) on number pattern material for eighth-grade junior high school students as a form of technology integration in learning. The e-LKPD integrates cultural elements, such as the Gordang Sambilan musical instrument and the Tongkonan traditional house, to create more contextual and meaningful learning experiences. This study employed a 4D development model consisting of defining, designing, developing, and disseminating stages. The validation results from material and media experts indicated that the developed e-LKPD was categorized as highly valid, while student responses showed that it was highly practical. The product was tested on a limited scale at SMP Negeri 6 Metro. Therefore, the developed ethnomathematics-based e-LKPD is feasible to be used as a learning medium to support students in understanding number pattern concepts more meaningfullyKeyword: e-LKPD, Ethnomathematics, Mathematics.

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