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CONSISTAN : Jurnal Tadris Matematika
Published by Universitas Al-Qolam
ISSN : -     EISSN : 30250943     DOI : https://doi.org/10.35897/consistan.v2i02.1685
Core Subject : Education,
Mathematics
Consistan, Jurnal Tadris Matematika, sebuah jurnal internasional elektronik, menyediakan forum untuk menerbitkan artikel penelitian asli, artikel review dari pakar yang diundang, dan berita teknologi baru yang terkait dengan pendidikan matematika. Jurnal ini dirancang dan dikhususkan tidak hanya untuk anggota Indonesian Mathematics Society (IndoMS) tetapi juga untuk dosen, peneliti, guru sekolah matematika, pendidik guru, mahasiswa (S2 dan S3) yang ingin mempublikasikan laporan penelitian atau artikel tinjauan pustaka mereka (hanya untuk kontributor yang diundang), dan komunikasi singkat tentang pendidikan matematika dan instruksionalnya. Selain penulis reguler, untuk setiap volume, isinya akan disumbangkan oleh para kontributor yang diundang yang ahli dalam pendidikan matematika baik dari Indonesia maupun luar negeri. Jurnal mengundang artikel penelitian asli dan tidak secara bersamaan dikirim ke jurnal atau konferensi lain. Seluruh spektrum penelitian dalam pendidikan matematika dipersilakan, yang meliputi, namun tidak terbatas pada topik-topik berikut: Belajar dan pembelajaran matematika Asesmen pembelajaran matematika Pengembangan model, media, dan bahan ajar matematika Kemampuan dan proses berpikir matematika Teknologi dalam pengajaran dan pembelajaran matematika Kurikulum Pendidikan Matematika Pengembangan kompetensi guru matematika Etnomatematika Integrasi matematika dan nilai islam Dan berbagai topik dalam bidang pendidikan matematika
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 68 Documents
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Optimalisasi Pencapaian Hasil Belajar Matematika Melalui Model Pembelajaran Berbasis Proyek Bagi Siswa Kelas VII Yuniar Ika Putri Pranyata; Nur Afifah Dwi Setiari; Trija Fayeldi
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2520

Abstract

Low mathematics learning outcomes of students remain a fundamental challenge that is often faced at the junior high school level, especially in grade VII. This condition requires the implementation of a more innovative, contextual, and student-centered learning model. This study aims to describe the optimization of mathematics learning outcomes through the implementation of project-based learning with data and diagram topics in grade VII MTs Badrussalam Indonesia. A descriptive qualitative approach was used using Classroom Action Research consisting of one cycle. The subjects of the study were 19 students of grade VII, selected based on preliminary observations that showed an average score of only 34.11, well below the minimum mastery criteria set. Data was collected through evaluation tests, observation of teacher and student activities, interviews, and documentation. Data analysis is carried out using interactive qualitative techniques that include data reduction, data presentation, and conclusion drawn. The results of the study revealed that teacher activity reached a percentage of 92.8% and student activity reached 87.1%, both of which met the predetermined success indicators. The results of the final evaluation test showed that 84.2% of students managed to achieve grades above the minimum mastery criteria, with a grade average of 83.4. These findings showed a remarkable improvement compared to the initial conditions before the intervention. As a result, project-based learning has been proven to be effective in optimizing the mathematics learning outcomes of junior high school students significantly and meaningfully.
Eksplorasi Hambatan Mahasiswa Dalam Menyelesaikan Masalah Matematika Tidak Terstruktur Ros Maliah Ahmad; Aida Nur Aini; Fortuna Cantika Syari; Yudhi Hanggara; Asmaul Husna
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2531

Abstract

The failure of students to solve unstructured mathematical problems is a common issue in the learning process. The purpose of this study is to explore the causes of students’ failure to solve unstructured mathematical problems. This study employed a descriptive qualitative approach. The research subjects consisted of 47 mathematics education students, with 6 students—comprising first-, third-, and fifth-semester mathematics education students from the University of Riau Islands—serving as the primary subjects for interviews. Data collection techniques included a written test in the form of unstructured problem-solving questions, interviews, and observations. The test instrument was validated through expert validation to ensure the appropriateness of the mathematical problem-solving indicators. The data analysis in this study followed the framework of Miles and Huberman, which includes data reduction, data presentation, and drawing conclusions. The results of the study indicate that first-semester students predominantly struggle at the stage of understanding and representing problems, while upper-semester students tend to have weaknesses at the stage of evaluating and reflecting on problems. Additionally, students’ failures are influenced by their continued reliance on routine problems, their tendency to use a single algorithmic solution strategy, and their failure to evaluate and reflect on the results of problem-solving.
Media Matematika Adaptif Berbasis Offline-First Untuk SD Pedesaan: Di SD Negeri 102 Sigalapang Indah Warni; Almira Amir; Khairunnisa; Tuti Alawiyah Matondang
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2554

Abstract

This study developed and evaluated the impact of an offline-first adaptive mathematics learning platform on the conceptual understanding and digital self-efficacy of rural primary school students. Utilizing a sequential explanatory mixed-methods design integrated with Design-Based Research, the study involved 87 students from SD Negeri 102 Sigalapang over a six-week intervention. Quantitative analysis via ANCOVA revealed significant improvements in conceptual understanding (Δ = +13.3 points; p < .001; ηp² = 0.183) and digital self-efficacy (Δ = +1.06; p < .001; ηp² = 0.145). Qualitative findings identified the psychopedagogical mechanisms underlying these outcomes: interface predictability reduced extraneous cognitive load, adaptive branching facilitated autonomy without stigma, and immediate feedback reinforced mastery experiences. The frequency of task abandonment decreased from 34.2% to 9.1%, confirming sustained engagement within resource-constrained environments. The study concludes that offline-first adaptive mathematics learning represents a cognitively and affectively sound pedagogical strategy, rather than merely a technical workaround. These findings offer a replicable framework for developing inclusive educational technologies in emerging markets, while underscoring that digital equity in mathematics education necessitates designs responsive to local infrastructural realities.
Validitas Pengembangan LKPD Eksplorasi Geometri Melalui Pesawat Kertas Berbasis RME WILDAN HAKIM
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2556

Abstract

This research is motivated by the low understanding of geometry material by students due to conventional learning processes that tend to be theoretical and abstract. One alternative solution is to provide contextual learning tools that can facilitate independent physical exploration. This research aims to produce a Student Worksheet (LKPD) "Geometry Exploration Through Paper Airplanes" based on Realistic Mathematics Education (RME) that is valid and suitable for use in learning. The type of research applied is research and development (R&D) by adopting the Plomp development model which is limited to two main stages, namely the preliminary analysis stage (preliminary research) and the design and development stage of the prototype (design and develop prototype). Data collection instruments are in the form of a needs analysis interview sheet and a Likert-scale standard instrument assessment questionnaire for expert validity testing. Qualitative data are analyzed by summarizing suggestions for improvement, while quantitative data are analyzed using the validity percentage formula. The results of the formative evaluation through expert validity testing (expert review) show that the developed LKPD falls into the "Very Valid" category with an average overall validity percentage reaching 88.6%. Specifically, the validity level was obtained from the accumulated scores of 88% from the material expert (accurate concept and RME syntax), 92% from the media expert (highly intuitive visual design and layout), and 86% from the language expert (concise and communicative instructional sentences). Based on these results, this concrete activity-based worksheet, folding origami paper airplanes, was deemed highly suitable for further assessment through a field trial to directly measure its practicality and effectiveness in the classroom.
Pengembangan e-LKPD Flipbook Berbasis RME untuk Memfasilitasi Literasi Matematis Siswa SMP Rulia Nurul Qomariah; Fuad Luky Atmaja
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2584

Abstract

This study aims to develop a flipbook-assisted e-LKPD based on the Realistic Mathematics Education (RME) approach on social arithmetic material to facilitate the mathematical literacy skills of seventh-grade junior high school students. This study employed a Research and Development (R&D) method using the 4-D development model, which consists of the define, design, develop, and disseminate stages. However, this study was limited to the develop stage because the research focused on the process of designing, validating, and revising the product to produce teaching materials that are feasible for use based on expert assessments. The research subjects consisted of two expert validators, namely a media expert and a material expert, as well as three seventh-grade junior high school students in a small-scale trial to determine the readability, clarity of content, and ease of use of the e-LKPD before it is implemented on a wider scale. The research instruments included media expert validation questionnaires, material expert validation questionnaires, and student response questionnaires using a Likert scale. The data analysis technique used descriptive quantitative analysis by calculating the percentage of product validity and practicality results. The results showed that the flipbook-assisted e-LKPD based on RME obtained a media expert validation percentage of 90.6% with a “very valid” category and a material expert validation percentage of 88.5% with a “very valid” category. In addition, the practicality test result obtained a percentage of 77.7% with a “practical” category. Student learning outcomes also showed an average score of 83.6 in the “good” category. Therefore, the flipbook-assisted e-LKPD based on RME is considered valid, practical, and feasible to be used as digital teaching material to support mathematics learning and has the potential to facilitate students’ mathematical literacy skills in social arithmetic material.
Analisis Kesalahan Siswa dalam Menyelesaikan Masalah Program Linear Berdasarkan Newman’s Error Analysis Afdal Windu Wijaya; Amelia Handayani; Elisabeth Wijaya; Erina Ika Fadilla; Izza Della Nur Rizki; Natanael Putera Rasjid Ginting; Neina Suci Radhani; M. Hasbi Ramadhan; Somakim; Yovika Sukma
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2585

Abstract

In solving problems regarding linear programs, errors are often found, especially in determining feasible areas and optimum solutions. This research aims to analyze student errors in solving linear program problems using the LKPD-based Newman’s Error Analysis approach in the context of optimizing pempek production. This research used a qualitative descriptive method with the research subjects of three class X high school students selected based on test results. The instruments used are LKPDs that have gone through an expert validation stage (expert review) and problem-solving tests. Data analysis is carried out through data reduction, data presentation, and drawing conclusions based on Newman’s five stages, namely reading, comprehension, transformation, process skills, and encoding. The research results show that the most dominant errors occurred at the encoding stage, while process skills errors were only found in one research subject. These findings show that students still have difficulty understanding the concept of feasible regions and determining optimum solutions to linear programming problems. This research contributes as a basis for developing contextual LKPD-based linear programming learning and as evaluation material for teachers to get students used to writing complete and precise mathematical conclusions in solving linear programming problems. This research is expected to be the basis for designing more effective learning to minimize student errors.
Analisis Kesalahan Siswa Kelas VIII pada Bangun Ruang Berdasarkan Teori Nolting dan Scaffolding Anggita Oktaviana Putri; Ayu Imtyas Zahrotut Thoyiba
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2639

Abstract

Student error analysis is an activity to investigate errors or deviations made by students in solving problems, both systematically and consistently. The purpose of this error analysis is to help teachers identify the extent of students' abilities in solving a problem. This study aims to describe the errors made by students and efforts to provide scaffolding or assistance. This study was conducted at SMP Bhakti Turen, with 25 eighth-grade students. The method used was qualitative research with a descriptive approach. In this study, three subjects were taken, representing the high, medium, and low levels of error categories. The data collection techniques used were tests and interviews. The data analysis techniques used were analysis of test scores and interviews. The data validity technique used was a credibility test. The results showed that subjects in the high error rate category made several errors, namely carelessness, conceptual errors, and conceptual application errors. Subjects in the moderate error rate category made two errors, namely carelessness and conceptual application errors. Subjects in the low error rate category made one error, namely carelessness. Based on the results of this research, teachers can provide scaffolding or assistance so that students can correct the mistakes they make.
Item Analysis of an Adaptive Assessment Question Bank in Maritime Vocational Education Tika Septia; Dirhamsyah; Tanti Diyah Rahmawati; Rezky Rahma Ruslan
CONSISTAN (Jurnal Tadris Matematika) Vol 4 No 01 (2026): Consistan : Jurnal Tadris Matematika
Publisher : Program Studi Tadris Matematika Fakultas Tarbiyah Institut Agama Islam Al-Qolam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35897/consistan.v4i01.2641

Abstract

Adaptive assessment systems depend on question banks whose difficulty rises in a credible way and whose items can distinguish learner performance. This study reports the design and validation of a 90-item question bank for adaptive learning in maritime mathematics at Politeknik Pelayaran Surabaya. The bank covered six STCW-aligned topics (speed-distance-time, ETA calculation, compass correction, great circle navigation, tidal height, altitude correction), arranged them across three progressive difficulty levels, and linked them to an AI-tutor system using a 2-up/2-down adaptive staircase algorithm. Validation had two parts. The maritime mathematics curriculum committee first conducted an expert pedagogical audit with a rubric covering curriculum alignment, difficulty progression, answer correctness, and linguistic clarity. Simulated pilot testing with synthetic learner profiles was then used to check whether the adaptive engine behaved as expected. In that audit, 15 of 90 items needed revision, mainly for clarity and difficulty calibration, while 75 were retained without modification. After revision, the bank still showed a balanced spread across topics and difficulty levels and maintained appropriate content validity. Simulation results likewise confirmed the intended pattern: difficulty shifted only after two consecutive correct or incorrect responses. For that reason, expert review paired with simulation offers a workable validation route for adaptive assessment systems in specialized vocational education contexts, especially when large-scale learner pilot testing is not yet feasible.

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