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All Journal AKSIOMA: Jurnal Program Studi Pendidikan Matematika JIPM (Jurnal Ilmiah Pendidikan Matematika) EDU-MAT: Jurnal Pendidikan Matematika Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan NUMERICAL (Jurnal Matematika dan Pendidikan Matematika) Briliant: Jurnal Riset dan Konseptual Jurnal Kajian Pembelajaran Matematika QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama PRISMA Jurnal Pendidikan : Riset dan Konseptual IndoMath: Indonesia Mathematics Education JTAM (Jurnal Teori dan Aplikasi Matematika) Jurnal Pendidikan Matematika (Kudus) Premiere Educandum: Jurnal Pendidikan Dasar dan Pembelajaran AXIOM : Jurnal Pendidikan dan Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika JPMI (Jurnal Pembelajaran Matematika Inovatif) International Journal of Insights for Mathematics Teaching (IJOIMT) Jambura Journal of Mathematics Education Edumatica: Jurnal Pendidikan Matematika Room of Civil Society Development Electronic Journal of Education, Social Economics and Technology Jurnal MIPA dan Pembelajarannya Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang GEMBIRA (Pengabdian Kepada Masyarakat) JRAMathEdu (Journal of Research and Advances in Mathematics Education) Journal of Innovation and Teacher Professionalism Room of Civil Social Development
Rustanto Rahardi
Universitas Negeri Malang
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Development of Computer-Assisted Learning Media Material on the Relationship Between Coefficients and Discriminants of Quadratic Functions Widuri, Nabila Ekaputri; Rahardi, Rustanto; Nusantara, Toto; Nasution, Syaiful Hamzah
PRISMA Vol 14, No 1 (2025): PRISMA
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v14i1.4534

Abstract

This study aims to create media products that are suitable for use and make it easier for students to understand the material concept of the relationship between coefficients and discriminants of quadratic functions with their graphs. The media was developed using GeoGebra and student worksheets. This study uses the development of the ADDIE model with the stages of analysis, design, development, implementation, evaluation. The developed media was tested on 29 students of SMP Salahuddin class IX D. The developed media was declared valid based on the validator's assessment with the percentage of validity of interview guidelines 97%, learning media 92%, student worksheets 94%, lesson plans 94%, quizzes 91%, 95% student response questionnaire, 93% student activity observation sheet, 92% teacher activity observation sheet. The media is declared practical based on the teacher's assessment with the percentage of practicality of student response questionnaires 88%, student activity observation sheets 96%, teacher activity observation sheets 96%. The media was also declared effective based on student quiz assessments with a percentage of 93% of students getting an average score of at least 80 completeness requirements the graph.
Pengembangan Media Ular Tangga pada Pelajaran Pendidikan Pancasila Materi Keragaman Budaya di Indonesia: - Ziadatul Muslimah, Khilma; Rahardi, Rustanto; Anggraini, Ria; Ardan S, Muhammad Rey
Jurnal Pendidikan : Riset dan Konseptual Vol 9 No 2 (2025): Volume 9, Nomor 2 Tahun 2025
Publisher : Lembaga Penelitian dan Pengabdian Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/riset_konseptual.v9i2.1122

Abstract

Abstrak: Peserta didik di sekolah dasar biasanya belajar dalam kelompok, mereka menyukai belajar melalui permainan. Karena alasan tersebut, peneliti berinisiatif mengembangkan game edukasi Pendidikan Pancasila menggunakan media Ular Tangga untuk mengajarkan siswa tentang keragaman budaya di Indonesia. Tujuan dari penelitian ini adalah untuk menganalisis penggunaannya dan menciptakan media yang valid, praktis, dan efektif. Pengembangan media ini dilakukan dengan menggunakan model ADDIE. Instrumen media ular tangga, soal evaluasi, serta angket digunakan untuk pengolahan data dalam pengembangan media ini. Temuan penelitian ini meliputi produk yang dapat digunakan oleh guru untuk meningkatkan pemahaman materi yang akan diajarkan, khususnya di SDN Bareng 1 Kota Malang. Media ini dapat dimanfaatkan untuk pelajaran Pembelajaran Pancasila dan diharapkan dapat menjadi inspirasi bagi guru lain untuk membuat media yang kreatif. Selain itu, media ini juga bisa menjadi simbol ikonik pembelajaran di SDN Bareng 1 Kota Malang. Hasil analisis validitas menunjukkan bahwa media ular tangga yang dibuat sudah memenuhi standar yang ditetepkan. Telah dinilai efektif dengan 85% peserta didik mendapat nilai evaluasi di atas 75 (KKM), praktis dengan nilai kepraktisan 3,4, dan valid dengan nilai validitas 3,76.
- Analisis Keterampilan Komputasi Peserta Didik dalam Inovasi Pembelajaran Interaktif Berbasis Quizizz Paper Mode: - Qomarudin, Moch Hamzah; Ziadatul Muslimah, Khilma; Ardan Saputra, Muhammad Rey; Anggraini, Ria; Millenia Nugraha, Hermawan Septa; Rahardi, Rustanto
Jurnal Pendidikan : Riset dan Konseptual Vol 9 No 2 (2025): Volume 9, Nomor 2 Tahun 2025
Publisher : Lembaga Penelitian dan Pengabdian Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/riset_konseptual.v9i2.1136

Abstract

Abstrak: Abad ke-21, yang ditandai dengan kemajuan teknologi digital, memberikan kesempatan bagi guru untuk menciptakan inovasi dalam pembelajaran melalui fitur Quizizz Paper Mode. Hal ini membuat siswa merasa lebih termotivasi dan nyaman selama proses belajar. Penelitian ini dilakukan dengan subjek siswa kelas IV A di SDN Bareng 1 Kota Malang, dengan tujuan untuk mendeskripsikan keterampilan komputasi siswa melalui analisis data kuis, respon dari kuesioner, dan rekaman wawancara. Hasil penelitian menunjukkan bahwa rata-rata keterampilan komputasi siswa dikategorikan dalam predikat "cukup". Secara rinci, 5,56% siswa mendapatkan predikat "sangat baik", 22,22% "baik", 55,56% "cukup", dan 16,67% "perlu bimbingan". Berdasarkan temuan ini, disarankan agar guru memanfaatkan Quizizz Paper Mode sebagai alternatif dalam pembelajaran agar siswa tidak merasa jenuh. Selain itu, guru juga perlu memprioritaskan pemahaman siswa terhadap konsep materi, bukan hanya bergantung pada Quizizz.
Kemampuan Pemecahan Masalah Matematis pada Penyelesaian Soal Jumping Task Berdasarkan Adversity Quotient Peserta Didik Prasetyo, Yudha Eka; Rahardi, Rustanto; Rahmadani, Desi
Jambura Journal of Mathematics Education Vol 6, No 1: Maret 2025
Publisher : Department of Mathematics, Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jmathedu.v6i1.30230

Abstract

Mathematical problem-solving ability is essential in learning activities at school and real life. Until now, students' abilities in solving mathematical problems vary, especially in solving non-routine problems, such as jumping task problems. These differences can be influenced by several factors, one of which is the adversity quotient. This study determined the mathematical problem-solving ability according to Polya's stages to solve jumping task problems based on students' adversity quotient. This study was conducted by involving 22 students in one of the junior high schools (SMP) in Malang Regency as research subjects. In this study, the researcher acted as the main instrument assisted by the Adversity Response Profile (ARP) questionnaire, problem-solving question sheets, and semi-structured interview guidelines. This study began with the provision of a questionnaire. Continued by working on test questions and selecting three students to conduct interviews. This study found that climber students tend to be more able to solve problems according to Polya's stages tactically and effectively, and have better verbal skills. Students have also been able to understand the issues contained in the jumping task questions. However, all students tend to skip the stage of re-examining the process and answers.
An exploration of critical thinking stages of junior high school students in solving contradictory mathematical problems Agusman, Agusman; Purwanto, Purwanto; Rahardi, Rustanto
JRAMathEdu (Journal of Research and Advances in Mathematics Education) Volume 10 Issue 3 July 2025
Publisher : Lembaga Pengembangan Publikasi Ilmiah dan Buku Ajar, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jramathedu.v10i3.8911

Abstract

Critical thinking is a fundamental competence in 21st-century education, particularly in mathematics, where students frequently encounter contradictory information that requires logical reasoning and reflective judgment. This study explores the stages of critical thinking among junior high school students when solving contradictory mathematical problems. A qualitative descriptive design was employed, involving two eighth-grade students from SMP Negeri 01 Sumber Pucung, Malang, who were selected based on their skeptical responses to illogical mathematical tasks. Data were collected through open-ended tests and interviews, then analyzed to capture reasoning patterns and problem-solving strategies. The findings revealed three distinct stages of mathematical critical thinking: (1) Initial Stage (interpretation), where anomalies are sensed; (2) Tracing Stage (analysis), where contradictions are identified; and (3) Global View Stage (evaluation and inference), where holistic reasoning and alternative solutions are proposed. Subject 1 demonstrated conceptual awareness, cognitive flexibility, and evaluative rigor, while Subject 2 showed procedural accuracy but limited inferential precision. These findings suggest that contradictory problems can serve as effective instructional tools for balancing procedural and conceptual reasoning. Practical implications highlight the need for integrating contradictory problems into mathematics instruction to promote metacognitive reflection. Future research should expand participant diversity, employ longitudinal and experimental designs, and explore affective dispositions influencing students’ critical engagement.
Development of Differentiate Student Worksheets: an Efforts to Improve Student Argumentation Ability Putra, Zuhadur Ra'is Ariyono; Rahardi, Rustanto; Sisworo, Sisworo
JTAM (Jurnal Teori dan Aplikasi Matematika) Vol 8, No 1 (2024): January
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jtam.v8i1.17426

Abstract

Online learning experiences have been associated with reduced learning outcomes and limited student engagement in argumentation. To address this issue, the focus on teaching materials becomes crucial, especially in promoting differentiated learning to accommodate pandemic-induced learning losses. A prime candidate for enhancing argumentation skills is the study of quadrilaterals within mathematics. Mastering the quadrilateral concept and its argumentative structure is pivotal for students. Hence, the creation of student worksheets employing differentiated learning principles is imperative. This research aims to develop valid, practical, and effective quadrilateral worksheets with a focus on adversity quotient differentiation. The ADDIE model guides the development process through Analysis, Design, Development, Implementation, and Evaluation stages. Rigorous evaluation, including expert validation (83.8% very valid), field trials (91% very practical), and N-Gain score analysis (0.73, indicating effectiveness), underscores the quality of the developed worksheets. In conclusion, the adversity quotient differentiated quadrilateral worksheets has been successfully crafted to enhance students' argumentation skills. It is deemed valid, practical, and effective in improving learning outcomes. This initiative holds potential for addressing the challenges posed by online learning and contributes to students' academic development.
Pengenalan Media Manipulatif untuk Mendukung Konsep Matematika pada Siswa Kelas XII SMA Negeri 1 Gondang Nganjuk Dewi Utami, Anita; Rustanto Rahardi; Mochammad Hafiizh; Lucky Tri Oktaviana
Room of Civil Society Development Vol. 2 No. 2 (2023): Room of Civil Society Development
Publisher : Lembaga Riset dan Inovasi Masyarakat Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59110/rcsd.170

Abstract

Media manipulatif merupakan berbagai jenis benda yang dapat dimanipulasi untuk membantu siswa dalam memahami konsep matematis. Tujuan dari pengabdian ini adalah mengenalkan media manipulatif untuk mendukung pemahaman konsep matematis pada Siswa SMA Negeri 1 Gondang Nganjuk. Metode yang digunakan melalui empat tahap yaitu tahap pertama adalah persiapan tim dari Departemen Matematika. Tahap kedua adalah diskusi antar tim pengabdi tentang pemanfaatan media manipulatif. Tahap ketiga adalah koordinasi antara tim pengabdi dengan pihak sekolah. Tahap keempat yaitu penyampaian pemateri kepada siswa kelas XII SMA Negeri 1 Gondang Nganjuk. Pengabdian telah terlaksana dengan cukup baik. Hal ini dapat dilihat dari partisipasi mitra dalam pelaksanaan kegiatan pkm sangat antusias dan aktif. Tingkat keberhasilan pkm ini didasarkan pada indikator partisipasi peserta dalam pelaksanaan kegiatan dan daya serap peserta dari materi yang diberikan yaitu: (1) partisipasi peserta sangat tinggi, telah dibuktikan dengan kehadiran siswa pada kegiatan secara penuh dan selalu aktif mengemukakan pendapat serta antusias saat pelaksanaan. (2) Daya serap peserta pkm dalam penguasaan membuat media manipulatif memiliki rata-rata baik.
Utilization of Number Line Media in Dienes' Step Learning: A Process Study to Overcome Difficulties in Integer Operations Rohim, Abdur; Sa'Dijah, Cholis; Rahardi, Rustanto; Sisworo, Sisworo; Sukoriyanto, Sukoriyanto; Muksar, Makbul
Electronic Journal of Education, Social Economics and Technology Vol 5, No 2 (2024)
Publisher : SAINTIS Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33122/ejeset.v5i2.272

Abstract

Integers are an important topic in mathematics that students must understand well. However, in practice, many students face difficulties in understanding integer operations. One way to address this issue is by using a number line manipulative that employs Dienes' steps. This research is qualitative, with a case study approach. The subjects consisted of three 6th-grade students selected through purposive sampling. The three subjects had varying mathematical abilities: high, medium, and low. The learning activities used six steps of Dienes. The instruments used were observation sheets, interview guidelines, and a test consisting of eight questions related to the addition and subtraction of integers. Data collection techniques followed the Miles and Huberman model, which includes data reduction, data presentation, and drawing conclusions. The results of the study indicate that learning using Dienes' steps with integer manipulatives successfully addressed students' difficulties in performing integer operations, especially in problems involving operations with two adjacent signs.
Analisis Kesalahan Siswa dalam Penyelesaian Masalah Aritmatika Sosial Tipe HOTS dengan Prosedur Polya Irianto, Savitri Oktavia; Nusantara, Toto; Rahardi, Rustanto
BRILIANT: Jurnal Riset dan Konseptual Vol 9 No 4 (2024): Volume 9 Nomor 4, November 2024
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v9i4.1769

Abstract

This study is motivated by the importance of social arithmetic in students' social life. This study uses a descriptive qualitative approach that aims to identify students' errors in solving HOTS type social arithmetic problems with the Polya procedure. The subjects of this study were grade VII students of SMP Taman Siswa Malang. Data were obtained from the results of the HOTS type social arithmetic test as many as 2 items in the form of descriptions. The results of this study are errors in the stage of understanding the problem of 30.10% and are included in the fairly high category, errors in the stage of planning problem solving of 28.28% which are included in the fairly high category, errors in the stage of carrying out problem solving plans of 06.26% and are included in the very small category, and errors in the stage of re-checking the solutions obtained of 28.68% and are included in the fairly high category. The causes of errors made by students are quite diverse, one of which is that students forget to write down information known from the questions, students are unable to analyze the existing information, students are not careful when calculating, and students are not used to re-examining what has been done.
Analisis Kesalahan Siswa dalam Menyelesaikan Soal Persamaan dan Pertidaksamaan Nilai Mutlak Berdasarkan Teori Newman Cahyaningtyas, Octavita; Rahardi, Rustanto; Irawati, Santi
Edumatica : Jurnal Pendidikan Matematika Vol 11 No 3 (2021): Edumatica: Jurnal Pendidikan Matematika (Desember 2022)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (886.307 KB) | DOI: 10.22437/edumatica.v11i03.14201

Abstract

The purpose of this study is to describe the types of errors that students make in solving absolute value equations and inequalities using Newman's theory (NEA). The method used in this study is a qualitative descriptive method. Questions were given to 30 students of class X SMA Negeri 1 Sumberpucung. The data collection techniques in this study were the results of students' written tests and the results of interviews related to the results of students' written tests. Based on the results of the research conducted, it is known that there are no students who experience reading errors on all questions while encoding error in answers are the mistakes that most students make. This happens because when students make mistakes in understanding, students will automatically make mistakes in understanding, transforming, processing skill and encoding error. The mistakes that students make are based on their lack of understanding of the concept of absolute value. Because if students understand the existing concepts correctly, they will be able to solve various existing problems. So that teachers are advised to provide meaningful learning for students so that students do not easily forget the concept of a material. From this research, it can be concluded that the types of errors that students make are understanding, transforming, processing skill and encoding error.
Co-Authors Abdur Rahman As’ari Abdur Rohim, Abdur Agusman, Agusman Akhidayati, Ria Risyandani Alip Rahmawati Zahrotun Nisak Anik Rizka Rahmawati Anita Dewi Utami Ardan S, Muhammad Rey Ardan Saputra, Muhammad Rey Arnaningtyas Rofi'i Arwan Mhd. Said Astuti, Ririn Novia Cahyani, Nia Cahyaningtyas, Octavita Cholis Sa’dijah Christiyanto, Dana Yuli Dahliatul Hasanah Dana Yuli Christiyanto Destri Mega Arumanita Elis Dwi Wulandari Emanuel, Endrayana Putut Laksminto Erry Hidayanto Ewan Gunawan Faradila Nur Sabrina Fauziyyah Alimuddin HAFIIZH, MOCHAMMAD Herdiansyah, Adi Hery Susanto Hery Susanto Hijriani, Lailin Huda, Ristianur I Made Sulandra I Nengah Parta Indriati Nurul Hidayah Irianto, Savitri Oktavia Izzah Khairu Rahmah Janah, Miftakul Khalisa Naura Imanda Kusumaningtyas, Nopem Lailin Hijriani Lestary, Ratnah Lucky Tri Oktaviana Lutfika Zayyenu Zuhairini M Zainul Arifin Makbul Muksar Maulana Al - Ghofiqi Millenia Nugraha, Hermawan Septa Muhammad Rizaldi Nia Cahyani Novi Nurhayati Nugraha, Hermawan Septa Millenia Nursani Indah Pratiwi Octavita Cahyaningtyas Okviarini, Dewi Permadi, Hendro Prasetyo, Yudha Eka Purwanto Purwanto Purwanto Purwanto Putra, Zuhadur Ra'is Ariyono Qomarudin, Moch Hamzah Rachmat Wasqita Rahma Wahyu Rahmadani, Desi RIA ANGGRAINI Risna Zulfa Musriroh Rony, Zahara Tussoleha Saidah Ajilatun Nahdawiyah Sisworo Siti Na’imah Slamet . Subanji Subanji Sudirman Sudirman Sukoriyanto Susiswo Suwanto Suwanto Swasono Rahardjo Syaiful Hamzah Nasution Tjang Daniel Chandra Toto Nusantara Trianingsih Eni Lestari Widuri, Nabila Ekaputri Ziadatul Muslimah, Khilma Zuhadur Ra'is Ariyono Putra