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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Penelitian dan Evaluasi Pendidikan JURNAL PENELITIAN ILMU PENDIDIKAN INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni Pythagoras: Jurnal Matematika dan Pendidikan Matematika Autotech: Jurnal Pendidikan Teknik Otomotif Universitas Muhammadiyah Purworejo Rotasi MATICS : Jurnal Ilmu Komputer dan Teknologi Informasi (Journal of Computer Science and Information Technology) Journal on Mathematics Education (JME) Journal on Mathematics Education (JME) Jurnal Riset Pendidikan Matematika Jurnal Prima Edukasia AKSIOMA: Jurnal Program Studi Pendidikan Matematika Journal of Research and Advances in Mathematics Education Al Ishlah Jurnal Pendidikan Network Engineering Research Operation [NERO] Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Journal of Educational Research and Evaluation Ta`Limuna : Jurnal Pendidikan Islam JURNAL CRANKSHAFT Jurnal ABDINUS : Jurnal Pengabdian Nusantara JATI (Jurnal Mahasiswa Teknik Informatika) Mandalika Mathematics and Educations Journal Southeast Asian Mathematics Education Journal Bioscientist : Jurnal Ilmiah Biologi Mosharafa: Jurnal Pendidikan Matematika J-Intech (Journal of Information and Technology) Inovasi Matematika (Inomatika) Edumatica: Jurnal Pendidikan Matematika Makara Journal of Technology Edunity: Kajian Ilmu Sosial dan Pendidikan Jurnal Sosial dan Sains Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang Jurnal Pengabdian Masyarakat dan Riset Pendidikan JRAMathEdu (Journal of Research and Advances in Mathematics Education) Jurnal Penelitian Pendidikan Indonesia Jurnal Pedagogi Matematika Science, Technology, and Communication Journal Kreano, Jurnal Matematika Kreatif Inovatif Kifah IJIS Edu : Indonesian Journal of Integrated Science Education Pedagogia : Jurnal Ilmiah Pendidikan Jurnal Didaktik Matematika
Ali Mahmudi
Universitas Negeri Yogyakarta
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Pemberdayaan Kelompok Tani Peternak Melalui Introduksi Mesin di Dusun Sukamaju Kab. Sumedang Haryadi, Haryadi; Mahmudi, Ali; Raharjo, Parno; Pamungkas, Adi; Suryadi, Aris; Triyono, Budi
Jurnal ABDINUS : Jurnal Pengabdian Nusantara Vol 6 No 3 (2022): Volume 6 Nomor 3 Tahun 2022
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/ja.v6i3.17797

Abstract

Sukamaju Hamlet, Sukawangi Village, Pamulihan District, Sumedang Regency, is one of the hamlet that still need guidance. Most of the residents are farmers and breeders. The livestocks mostly are sheep, dairy cattle and beef cattle. The hamlet comunity formed a farmer group, called Tunas Muda. This farmer group has various interrelated problems. Economic problems is the lack of capital. Meanwhile, the problem with infrastructure is that there is no processing machine, and no common location. The problem with management is that they do not have a good organization yet. Meanwhile, problems in marketing are the absence of featured products, and the bargaining power of farmers is very low. Through this community service program, in accordance with the fields of expertise and available resources, a chopper machine has been introduced to the Farmer Group to break the chain of problems. The direct result of this introduction is a decrease of fresh forage feed need by 35%. Meanwhile, another result of this program is the strengthening of management in the form of reorganization to strengthen the management, the preparation of a new division of tasks, as well as the construction of a common cage with a capacity of 20 sheep. With the existence of this common cage, it is hoped that it will improve organizational functions, as well as management efficiency and effectiveness. For the sustainability of this program, continuous evaluation and assistance is needed. The strengthening of organizational and financial management has been able to improve marketing. If last year's qurban season, the farmers group could sell 9 heads, this year's qurbani season could sell 15.
Mathematical Communication Ability Based on Anyaman Purun Ethnomathematics Maulina Fakhrunnisa Salsanabila; Marsigit Marsigit; Ali Mahmudi
AL-ISHLAH: Jurnal Pendidikan Vol 16, No 4 (2024): AL-ISHLAH: JURNAL PENDIDIKAN
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v16i4.5666

Abstract

Mathematical communication skills are essential for students to effectively express and understand mathematical ideas. This study investigates these skills within the context of one-variable linear equations and inequalities, incorporating ethnomathematics through the lens of anyaman purun (traditional grass weaving) as a culturally relevant framework. A qualitative descriptive research design was employed. The participants included six grade 7 students selected purposively from a pool of 28 students. Data collection methods comprised tests, interviews, and documentation. Data analysis was conducted following Miles and Huberman’s model, which includes data reduction, data presentation, and conclusion drawing. Triangulation through test results and interviews was used to ensure data validity. Findings revealed that 46.4% of the students displayed high-level mathematical communication skills, 28.6% demonstrated moderate skills, and 25% exhibited low skills. Students with high proficiency effectively conveyed mathematical concepts using written, visual, and mathematical expressions, while those with moderate skills performed adequately in these areas. Students with lower skills faced challenges across all aspects of mathematical communication. The integration of anyaman purun within mathematics instruction highlighted cultural relevance as a tool for enhancing mathematical communication. High and moderate skill levels corresponded with more effective communication and understanding of mathematical concepts, whereas students with lower skill levels struggled with these aspects. The study suggests that incorporating culturally relevant contexts like anyaman purun can improve mathematical communication skills, potentially enhancing learning quality and fostering students' ability to articulate mathematical ideas.
Impact of Multiple Intelligences and Problem-Based Learning on Mathematical Literacy and Self-Efficacy in Junior High School Students Dina Damiyanti Hidayat; Ali Mahmudi
AL-ISHLAH: Jurnal Pendidikan Vol 17, No 1 (2025): MARCH 2025
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v17i1.5463

Abstract

Mathematical literacy and self-efficacy are essential skills that influence students' success in mathematics. This study examines the impact of multiple intelligence-based and problem-based mathematics learning on students' mathematical literacy and self-efficacy. Additionally, it investigates whether multiple intelligence and problem-based learning are more effective than scientific learning approaches in improving these competencies. This quasi-experimental study employed a one-group pretest-posttest design. The study was conducted at State Junior High School 3 Yogyakarta during the even semester of the 2023/2024 academic year. The sample consisted of 64 students from two eighth-grade classes (VIII F and VIII E, each with 32 students). Data were collected using questionnaires to assess multiple intelligences before learning, observations to monitor learning implementation, and pretest-posttest assessments and questionnaires to evaluate students' progress. Data were analyzed using Multivariate Analysis of Variance (MANOVA) with Hotteling’s T² test and Independent Sample T-test statistics. Findings indicate that multiple intelligence-based mathematics learning using problem-based and scientific approaches significantly influences students' mathematical literacy and self-efficacy. Additionally, problem-based learning was found to be more effective than scientific learning, as it resulted in higher improvements in students' mathematical literacy and self-efficacy scores. The study concludes that integrating multiple intelligence with problem-based mathematics learning positively impacts students' mathematical literacy and self-efficacy. Future research should explore long-term effects and broader student populations to further validate these findings.
Mathematical Problem-Solving and Self-Efficacy in the Context of Algebraic Derivatives: A High School Study Farisman Ziliwu; Ali Mahmudi
Pedagogia: Jurnal Ilmiah Pendidikan Vol. 17 No. 1 (2025)
Publisher : FKIP UNIVERSITAS PAKUAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55215/pedagogia.v17i1.51

Abstract

The derivative of algebraic functions as a foundation for applications in mathematics, science, and engineering. Due to its complexity and contextual relevance, learning this topic demands not only strong problem-solving skills but also high levels of self-efficacy to support students’ confidence and persistence in mastering the material. Therefore, this study aims to analyze students’ mathematical problem-solving abilities and self-efficacy related to algebraic function derivatives. Conducted at a high school in Yogyakarta City, the study used a qualitative descriptive approach. Problem-solving was examined based on Polya’s steps: understanding the problem, devising a plan, carrying out the plan, and looking back. Self-efficacy was analyzed using Bandura’s dimensions: level, generality, and strength. The data was taken by self-efficacy questionnaire with Likert scale. The results elaborate students' problem-solving abilities in the topic of algebraic function derivatives fall into the good category. Students are also at a good level of self-efficacy. This study leads to the main conclusion that students’ problem-solving ability and self-efficacy in algebraic function derivatives are both categorized as good, and that there is a positive relationship between the two, indicating that higher self-efficacy corresponds to better problem-solving performance. These findings suggest that self-efficacy plays a significant role in supporting students’ success. Further research is recommended to explore this relationship more deeply, both qualitatively and quantitatively.
Improving Students' Interest in Mathematics Learning through Problem-Based Learning with Worked Examples and Interactive Quizzes on SPLDV Nur Fadila, Riza; Mahmudi, Ali; Rosnawati, Raden
Jurnal Inovasi Matematika Vol 8 No 1 (2026): Inovasi Matematika (Inomatika)
Publisher : Pendidikan Matematika Universitas Muhammadiyah Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35438/inomatika.v8i1.551

Abstract

Low student interest in SPLDV remains a challenge in mathematics education, primarily due to the limited integration of ICT-based learning media, inadequate learning resources, and the predominance of conventional teaching approaches that minimize active student participation. This study aims to examine how the PBL model, supported by worked examples and interactive quizzes, enhances students' learning interest in SPLDV instruction. Employing a classroom action Research design, the study involved 31 eighth-grade students from one of MTs Negeri in Bantul during the 2024/2025 academic year. Data were collected using questionnaires and observation sheets measuring students’ learning interest. Descriptive statistical analysis was conducted to determine the percentage increase in learning interest across cycles, both overall and for each indicator. The findings reveal a significant improvement in students’ learning interest following the implementation of the PBL model supported by worked examples and interactive quizzes. This increase is derived from the average scores for learning interest, observation sheets, and positive student responses. Students demonstrated greater enthusiasm, attention, motivation, and improved learning outcomes. These results suggest that integrating interactive digital components and structured worked examples within the PBL framework provides an effective pedagogical innovation to foster students' mathematics learning interest and learning outcomes.
The Effectiveness of GeoGebra-Assisted Realistic Mathematics Education in Enhancing Students’ Conceptual Understanding Ramadhan, Farizal; Mahmudi, Ali; Nabilla, Hanif Alyaa
Edumatica : Jurnal Pendidikan Matematika Vol 15 No 3 (2025): Edumatica: Jurnal Pendidikan matematika (Desember 2025)
Publisher : Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/edumatica.v15i3.45514

Abstract

This research studied the application of Realistic Mathematics Education and GeoGebra which could enhance students’ conceptual understanding in mathematics, especially for geometry themes on flat-sided shapes. The study included 26 eighth-grade students of a junior public high school in Yogyakarta, Indonesia. The research, which adopted a pre-experimental design with one-group pretest–posttest arrangement, intended to explore the extent of students’ understanding improvement as GeoGebra was implemented in RME-based learning. Two conceptual understanding tests were applied, before and after intervention, alongside observation sheets aimed at monitoring activities in the class. The analysis showed that the average score increased from 47.76% to 80.29%. The test of the paired sample t-test showed a significant difference between the pre- and post-test means. Meanwhile, the N-gain score obtained 0.63, falls within a moderate category regarding effectiveness, while the learning implementation reached 98.33%, categorized as very good. These indicate that integrating RME with GeoGebra enhances accessibility in mathematics concepts to the learners and involves active participation. Limitations, however, include poor pre-knowledge of the students, irregular attendance, and distractions from using mobile phones, probably affecting their engagement and performance.
Analysis of Students' Mathematical Critical Thinking Skills and Collaborative Collaboration Skills Retno Ayu Trisnawati; Ali Mahmudi
Edunity Kajian Ilmu Sosial dan Pendidikan Vol. 2 No. 12 (2023): Edunity: Social and Educational Studies
Publisher : PT Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/edunity.v2i12.199

Abstract

This study will provide an overview of the relationship between student collaboration and the mathematical critical thinking skills of grade VIII-F students of SMP N 1 Yogyakarta. The correlational technique is a technique used to test the relationship between the two variables. Based on the findings, there is a linear relationship between the mathematical critical thinking capacity of learners and the willingness to work together. The conclusion that can be drawn is that there is a substantial relationship between collaboration skills and mathematical critical thinking skills of grade VIII-F students of SMP N 1 Yogyakarta because of r_hitung>r_tabel (0.467>0.29). so that the conclusion that can be obtained is that there is a significant relationship between the ability to think critically mathematically and the collaboration of students of VIII-F SMP N 1 Yogyakarta. In addition, the relationship between the two research variables was positive because r_hitung= 0.467. Overall, students' collaboration skills fall into the medium, high, and very high categories, while their mathematical critical thinking skills fall into the low, medium, and high categories. However, some of them have collaboration skills that fall into the medium category but have low mathematical critical thinking skills, and there are also students who have collaboration skills that fall into the high category but have medium mathematical critical thinking skills. Low mathematical critical thinking skills make students unable to express reasons and justifications accurately. Although learners with intermediate critical thinking skills can provide reasonable justifications for such questions, the arguments they provide may not be entirely valid.
Enhancing Students Numeracy Skills in Solving Probability Problems through Realistic Mathematics Education Edi Susanto; Ali Mahmudi; Chhorn Sereyvuth
Didaktik Matematika Vol 11, No 1 (2024): April 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jdm.v11i1.36712

Abstract

Numeracy skills can help students to solve everyday problems. The low numeracy skills of students are caused by not understanding the problem, lack of strategy, and obstacles to evaluating and interpreting the solution to the context. The teacher needs to implement the learning process by using the RME approach, which uses local context and facilitates activity to think mathematically. This study aims to investigate the RME approach in enhancing numeracy skills and to describe the numeracy skills of students in solving problems according to numeracy indicators. The explanatory sequential mixed methods were used to analyze data from tests and interviews. The research subjects were 32 Grade 8 students, and four selected students chose to do the interviews based on each numeracy skills category. The results show a significant difference between the average numeracy skills of students before and after learning with the RME approach. Students with proficient, competent, and basic competencies fulfill the numeracy indicators. Meanwhile, students who need special intervention still have difficulty modeling problems into mathematical representations, incorrectly use the concept of probability, have inappropriate problem-solving strategies, and cannot interpret mathematical solutions in the form of arguments.
The influence of the scaffolding approach on critical thinking skills and student collaboration on mathematics learning Retno Ayu Trisnawati; Ali Mahmudi
JPPI (Jurnal Penelitian Pendidikan Indonesia) Vol. 10 No. 4 (2024): JPPI (Jurnal Penelitian Pendidikan Indonesia)
Publisher : Indonesian Institute for Counseling, Education and Theraphy (IICET)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29210/020243526

Abstract

Students' critical thinking abilities and collaboration skills still need to be considered. To overcome the low critical thinking skills and encourage collaboration skills, innovative learning is needed by applying a scaffolding approach when mathematics learning takes place. Apart from critical thinking skills, students' collaboration skills must also be considered. This research aims to: 1) analyze the effect of the scaffolding approach on critical thinking skills, and 2) analyze the effect of the scaffolding approach on students' collaboration skills. This type of research is a pre-experiment with a one-group pretest-posttest design. The sample in this study was students in class VIII-C of SMP Negeri 1 Yogyakarta, totaling 32 students. Data collection techniques include tests, questionnaires, and observations. The analysis used is a paired t-test. The research results obtained are 1) learning with a scaffolding approach shows a significant difference in critical thinking abilities and collaboration skills as viewed from the pre-test and post-test results, and 2) learning mathematics with a scaffolding approach can improve students' critical thinking abilities and collaborative skills.
Degradation of Mangrove Ecosystems in Banyuasin Regency, South Sumatra: Extent of Damage, Causes, and Ecological Impacts Mahmudi, Ali; Bakri; Rozirwan; Taqwa, Ridhah
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 1 (2026): March
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i1.19713

Abstract

This study aims to examine the scale of damage, identify the contributing factors, and analyze the resulting ecological impacts. The research employed a qualitative descriptive approach through field observations, interviews with coastal communities, and a literature review. Observations were conducted to assess the biophysical condition of mangroves, including vegetation density, stand structure, species composition, and indicators of degradation. Interviews were used to gather information on mangrove utilization activities, socio-economic pressures, and community perceptions of environmental change. The literature review supported the interpretation of field findings within the context of regional and global mangrove dynamics. The results indicate that mangrove degradation in Banyuasin is driven by a complex interaction between anthropogenic factors—particularly land conversion, resource exploitation, and coastal development—and natural factors such as abrasion, sedimentation, and tidal flooding. The identified ecological impacts include a decline in coastal protection functions, reduced habitat quality for coastal biota, and decreased carbon storage capacity. The conclusion of this study emphasizes the need for an integrated coastal management strategy that incorporates ecologically appropriate rehabilitation, strengthened governance, and community participation in order to sustainably enhance the resilience of mangrove ecosystems.
Co-Authors Abdur Rahman As’ari Achmad Rozikin, Achmad Ade Putra Adi Pamungkas Adtya Baskara, Galih Aep Sunendar Agung Kurniawan Agung Panji Sasmito Agus Pranoto , Yosep AHMAD FAISOL Ahmad Roziqi Zain Aji Wicaksono, Bayu Alawiyah, Rosiedatun Amanda Dinda Arum Nissa Amerta Nalle, Merpati vortuna Amin, Muhammad Yusuf Aminatun, Tien Amirul Mukminin Anak Agung Gede Sugianthara Andrajati, Nur Hidayati Anggraini, Tiara Wahyu Anis, Moh Badiul Ardhi Nur Rasyid, Muhammad Ari Akhirni Arifah Indah Setyorini Aris Suryadi Audiwinanda, Syahfira Bagaskara, Kevin Bagus Ardi Saputro Bagus Ardi Saputro, Bagus Bakri Bayu Samudro, Agusti Bayu Setiaji Bekti Ma'arif, Ilham Bere, Stevania Berta Apriza Budi Triyono Candra Aulia, Novia Chhorn Sereyvuth Dadan Rosana Damayanti, Anastasya Dina Damiyanti Hidayat Djamilah Bondan Widjajanti Dodiet Enggar Wibowo Dwi Rifka Kurniawan, Alvan Dyahsih Alin Sholihah Edgar Septandita Hariyanto, Nicollas Edi Susanto Edi Susanto Efrem Alfandro Pascal Geong Ega Prtama, Juniko Eka Puji Lestari Elah Nuerlaelah Emalia Ismayana, Vionika Endang Listyani Endang Wahyuningrum Evie Dwy Wahyu Arista Fahrurrozi Fahrurrozi Fajar Adhi Kurniawan Fajar Akbar Fajrul Mujab, Akhmad Farinta, Nanda Farisman Ziliwu Fatin, Rahma Nabila Fauzan Masykur Febriana Santi Wahyuni Fernandarisky, Oky Nigel Firmansyah Firmansyah Fitria Mardika Fitriana Yuli Saptaningtyas Hakim, Muh. Luthfi Hamdani, Ahmad Hani Zulfia Zahro Harna Yulistiyarini Haryadi - Hasan Syu'aibi, Muhammad Heri Retnawati Heru Sukoco Hidayatullah, Panji Himmawati Puji Lestari Husnul Amiroh, Marisa Maulani Ilmi, Miftachul Imam Ahmad Ghalib Indah Dwi Lestari Indah Dwi Lestari Indrastoto, Irfantoni Innes Budi Rahayu Ivania, Novia Fidela Izzatun Nur Zahra, Auliyaa Jailani Jailani Jasmani jasmani Jenica Weru, Gizca Kahfi Prasetyo Muslim, Eon Karina Auliasari Kartika Puspaningrum Kasuwi Saiban Khafidh Aulia, Muhammad Kuswari Hernawati Luthfi Nur Azizah Maarif, Shohibul Mahdi, Moh Maulidin Mandala Agung Putra, Hanjaya Marsigit Marsigit Mathilda Susanti Maulana Muhammad, Maulana Maulina Fakhrunnisa Salsanabila Mayang Purbaningrum Mira Orisa Mirza Mashudi, Muhammad Missa, Dionisius Mohammad Hasan Basri Mufarrihul Hazin Muhammad Fauzan Muhammad Munir Nabilla, Hanif Alyaa Nilatul Khoeriah Noor Laila Atini Nuerlaelah, Elah Nugroho, Dwi Yulianto Nur Aeni Ariyanti Nur Fadila, Riza Nurendro Ilhamsyah, Ramadhan Nurlaily Vendyansyah Olivia Dwi Ariska, Ira Perdana, Meylani Astino Petrus Londa Pramudita, Victor Pratiwi Pujiastuti Prayoga, Yudono Pujianto Putera Alamsyah, Daniel Putri Oktaviani, Anindhita Putri, Kiky Raden Rosnawati Radi Suradi Kartanegara Raharjo, Kanang Budi Raharjo, Parno Rahman, M. Tata Aulia Raihan Rahmalita, Deazuri Ramadhan, Farizal Renaldi Primaswara Prasetya Retno Ayu Trisnawati Retno Ayu Trisnawati Ridhah Taqwa, Ridhah Rina Dyah Rahmawati Rizki Arumning Tyas Rohmah, Fifi Nur Rozirwan . Sandy Nataly Mantja, Sandy Nataly Sdyoko Susanto Sentot Achmadi Septiardo, Pratedyo setiawan, Dibyo Simanjuntak, Arifin Sisilia Mutiara Putri Suwandi, Emmily Sudrajat Sudrajat Sudrajat Sudrajat Sugianto Sugianto Sugiman Sugiman Sukma Mawaddah Suryo Adi Wibowo Susilo, Tarsisius Syahlan Romadon Tantan Sutandi Nugraha Tapayasa, Gusti Bagus Oka Taufiq Rahmatullah, Muhammad Tiara Wahyu Anggraini Tosa, Christovel Trisnawati, Retno Ayu Tuharto Tuharto Uni Umamatun Nysa, Junia Wahyu Setyaningrum Wibowo, Dodiet Enggar Widhi Nugraha, Brilliananda Widigda, Inggri Ramadhani Wiranata, Ido Eka Yosep Agus Pranoto Yuli Kurniyawati