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All Journal Jurnal Karya Pendidikan Matematika Jurnal Riset Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika EDU-MAT: Jurnal Pendidikan Matematika Al Ishlah Jurnal Pendidikan Language Literacy: Journal of Linguistics, Literature, and Language Teaching Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Tarbawi : Jurnal Ilmu Pendidikan Martabe : Jurnal Pengabdian Kepada Masyarakat Saintifik : Jurnal Matematika, Sains, dan Pembelajarannya Psychology, Evaluation, and Technology in Educational Research Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Jurnal Onoma: Pendidikan, Bahasa, dan Sastra Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Square : Journal of Mathematics and Mathematics Education Community Empowerment Journal of Mathematics Education and Science International Journal of Business, Law, and Education EMTEKA: Jurnal Pendidikan Matematika JagoMIPA: Jurnal Pendidikan Matematika dan IPA International Journal of English and Applied Linguistics (IJEAL) ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat As-Sidanah : Jurnal Pengabdian Masyarakat Sulawesi Tenggara Educational Journal Jurnal Manajemen dan Kewirausahaan Jurnal Pengabdian Masyarakat Tjut Nyak Dhien AGRIEKSTENSIA Arus Jurnal Psikologi dan Pendidikan JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR) Al Basirah SEUNEUBOK LADA: Jurnal ilmu-ilmu Sejarah, Sosial, Budaya dan Kependidikan Geographica: Science and Education Journal Jurnal Sains Natural JME (Journal of Mathematics Education) Journal of Mathematics and Applied Statistics VISA: Journal of Vision and Ideas JME (Journal of Mathematics Education) Global Journal of Mathematics Education Eduma : Mathematics Education Learning and Teaching
Chairuddin Chairuddin
Universitas Sembilanbelas November Kolaka
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Analysis of Grade X Students' Conceptual Understanding in Solving Problems on Exponential and Logarithmic Competency Tests Based on Apos Theory Ramadhan, Nur Ihsan; Chairuddin, Chairuddin; Tahir, Tahir
JME (Journal of Mathematics Education) Vol 10, No 2 (2025): JME (Jul - Dec)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i2.2545

Abstract

This study aims to determine the level of students' understanding of mathematical concepts in exponents and logarithms based on APOS theory at SMA Negeri 4 Binongko. This study uses a qualitative approach with a descriptive method. The research subjects consisted of three tenth-grade students selected based on high, medium, and low ability levels. Data were obtained through competency tests and in-depth interviews, then analyzed based on the four stages of the APOS theory, namely action, process, object, and schema. The results showed that students with high ability had reached the schema stage, students with medium ability were at the object stage, and students with low ability were at the process stage. This indicates that there are differences in the level of conceptual understanding among students according to their respective abilities. Thus, the application of the APOS theory proved to be effective in identifying and mapping students' mathematical understanding of exponents and logarithms. These findings indicate that the APOS theory can be used as a basis for designing learning that encourages the development of students' conceptual understanding in mathematics.
THE EFFECTIVENESS OF THE ALEF DIGITAL CONTENT IN ENHANCING JUNIOR HIGH SCHOOL STUDENTS’ MATHEMATICAL UNDERSTANDING OF EXPONENTS Ulfa, Maria; Chairuddin, Chairuddin; Sari, Dian Ulfa
JME (Journal of Mathematics Education) Vol 10, No 2 (2025): JME (Jul - Dec)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i2.2544

Abstract

The integration of digital content in mathematics learning has become increasingly important to improve students’ engagement and conceptual understanding. This study aims to determine the effectiveness of using ALEF Education content on students’ mathematical understanding of exponents at SMP Negeri 1 Kolaka. This research employed a quantitative approach with a quasi-experimental design (post-test only control group), involving 48 eighth-grade students divided into an experimental and a control class. The experimental group learned using ALEF Education content integrated into classroom instruction, while the control group received conventional lessons without digital media. Data were collected through observations of teacher and student activities, as well as a mathematical comprehension test. The results showed that both teacher and student activities in the experimental class were higher (teachers: 84%; students: 80%) than in the control class (teachers: 81%; students: 72%). Students in the experimental group also achieved higher post-test scores (M = 19.54) than those in the control group (M = 19.48), and statistical analysis confirmed that the difference was significant at the 0.05 level. These findings indicate that ALEF Education content effectively improves students’ mathematical understanding and engagement in learning exponents. Integrating interactive and adaptive digital content into mathematics learning can thus serve as an innovative alternative to achieve meaningful and technology-enhanced learning outcomes in the 21st-century classroom.
PEDAGOGICAL CHANGE IN THE AI ERA: INDONESIAN EFL TEACHERS' VOICES AND CONTEXTUAL CONSTRAINT Rahmiati, Rahmiati; Al Tasa, Fiza Rauzika; Sanjaya, Muhammad Arif; Zulida, Evi; Hasrina, Noliza; Isda, Irma Dewi; Chairuddin, Chairuddin
Language Literacy: Journal of Linguistics, Literature, and Language Teaching Vol 9, No 2: December 2025
Publisher : Universitas Islam Sumatera Utara (UISU)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/ll.v1i1.12185

Abstract

This study examines how Indonesian English as Foreign Language (EFL) teachers perceive and negotiate pedagogical change arising from the integration of Artificial Intelligence (AI) into language instruction. This research uses an interpretive qualitative approach through semi-structured interviews with seven teachers from diverse institutional backgrounds in Sumatera. Thematic analysis identified six key themes: (1) pedagogical change through AI integration, (2) evolving teacher identity, (3) reflective professional agency, (4) contextual constraints, (5) students' engagement and critical awareness, and (6) the need for instructional support and teacher training. Findings indicate that AI tools, such as ChatGPT and Grammarly, have facilitated a shift toward more student-centered, project-based, and reflective teaching practices. Teachers reported a redefinition of their roles from content transmitters to facilitators and mentors, with an increasing emphasis on assessing learning processes rather than outcomes. However, AI integration was hindered by infrastructural limitations, unequal access to technology, and a lack of AI literacy. The study reveals that technological transformation in ELT is not merely technical but also shaped by contextual realities and teacher identity. It highlights the need for context-sensitive professional development and inclusive policy support that enhance teachers' adaptive capacities in an AI-mediated learning environment.
EXPLORING MATHEMATICS LEARNING PRACTICES AT SMA NEGERI 1 LALOLAE imelda, imelda; Tahir, Tahir; Chairuddin, Chairuddin; Karunia, Karunia
JME (Journal of Mathematics Education) Vol 10, No 2 (2025): JME (Jul - Dec)
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i2.2535

Abstract

This study aims to analyze mathematics learning strategies at SMA Negeri 1 Lalolae by exploring teaching methods, learning media, and student responses to identify more effective strategies for improving learning quality. This study employed a qualitative descriptive approach with an exploratory design. Data were collected through classroom observations, interviews with mathematics teachers, and questionnaires completed by 80 students. The findings reveal that lecture and problem-solving methods are most preferred by students, whereas discussion and project-based approaches are still rarely applied. Visual media were found helpful in supporting understanding; however, the use of digital applications remained limited. Students generally responded positively to learning, although their active participation and conceptual understanding still need improvement. The study concludes that the application of varied and appropriate methods and media can foster active student engagement and improve motivation and understanding in learning mathematics.
MATHEMATICAL REPRESENTATION IN PROBLEM-SOLVING: A COMPARATIVE STUDY OF REFLECTIVE AND IMPULSIVE COGNITIVE STYLES Meiliati, Rafika; Salido, Achmad; Aswin, Aswin; Husain, Dayana Sabila; Chairuddin, Chairuddin; Martins, Agus
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 14, No 4 (2025)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/ajpm.v14i4.13438

Abstract

Mathematical representation is a crucial skill that enables students to express, interpret, and connect mathematical concepts through visual, symbolic, and verbal forms. This study explores the differences in mathematical representation skills between students with reflective and impulsive cognitive styles in solving two-variable linear inequality system problems. Using a qualitative descriptive approach, four high school students were selected based on their cognitive styles through the Matching Familiar Figure Test (MFFT). Data were collected through problem-solving tasks and semi-structured interviews. The findings indicate that reflective students demonstrate strong mathematical representation abilities, particularly in organizing and translating information across visual, symbolic, and verbal representations. They exhibit a structured and analytical approach to problem-solving, ensuring accuracy and coherence in their representations. In contrast, impulsive students struggle with problem organization, symbolic representation, and verbal explanation, often producing incomplete and less structured representations due to their tendency to prioritize speed over accuracy. These results highlight the influence of cognitive style on mathematical representation and suggest the need for tailored instructional strategies. Future research should expand the study to a broader mathematical scope and implement targeted interventions to enhance students' representation skills according to their cognitive characteristics.
Local Wisdom in Language Learning: The Role of Translated Langsa Folklore in Improving Students’ English Competence Chairuddin, Chairuddin; Mukminin, Amirul; Barus, Efendi; Nuzwaty, Nuzwaty
International Journal of English and Applied Linguistics (IJEAL) Vol. 5 No. 3 (2025): Volume 5 Nomor 3 Desember 2025
Publisher : ITScience (Information Technology and Science)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47709/ijeal.v5i3.7287

Abstract

This study aims to analyze the effectiveness of using Langsa City folklore, translated from Indonesian into English, in enhancing children’s English learning outcomes. The research background stems from students’ low motivation and limited English proficiency, as well as the need for contextual and culturally relevant learning media. The study employed a quasi-experimental design involving two groups: the experimental group (n=30), which received instruction using translated folklore, and the control group (n=30), which followed conventional learning methods. Data were collected through pre- and post-tests of English competence, learning motivation questionnaires, and interviews with teachers and students. The findings indicate a significant improvement in the experimental group compared to the control group, both in English proficiency (p < 0.001) and learning motivation (? = +0.9). Qualitative analysis revealed that students were more enthusiastic and engaged with the material due to its familiar cultural values. The main challenges included limited time and difficulty in translating certain cultural vocabulary directly. Overall, the study concludes that translated Langsa folklore is an effective medium to enhance students’ learning outcomes and motivation in English language education. The implications emphasize the importance of developing local wisdom-based teaching materials to support foreign language learning in secondary schools.
PENGEMBANGAN BAHAN AJAR MATEMATIKA BERBASIS GEOGEBRA SERTA DAMPAKNYA TERHADAP KEMAMPUAN PEMAHAMAN KONSEP PADA MATERI FUNGSI Wilda Purnama Sari; Jahring Jahring; Chairuddin Chairuddin; Nasruddin Nasruddin; Sufri Mashuri; Irajuana Haidar
EDU-MAT: Jurnal Pendidikan Matematika Vol 13, No 1 (2025)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/edumat.v13i1.21235

Abstract

Abstrak: Penelitian ini bertujuan untuk mengembangkan dan menghasilkan bahan ajar matematika berbasis GeoGebra yang memenuhi kriteria valid, praktis, dan efektif, serta menganalisis dampak penggunaan bahan ajar terhadap kemampuan pemahaman konsep siswa. Metode penelitian yang digunakan adalah penelitian dan pengembangan (Research & Development/R&D) dengan model Tessmer tipe evaluasi formatif. Subjek dalam penelitian ini terdiri atas 22 siswa kelas VIII A SMP Negeri 2 Latambaga. Teknik pengumpulan data meliputi observasi, wawancara, angket, tes (soal), dan dokumentasi, sedangkan teknik analisis data yang digunakan adalah analisis deskriptif kualitatif.  Hasil penelitian menunjukkan bahwa persentase validitas bahan ajar menurut ahli materi dan ahli media mencapai 87,17%. Sementara itu, tingkat praktikalitas berdasarkan penilaian kelompok one-to-one adalah 84,29%, dan dari kelompok small group sebesar 87,62%. Sebanyak 81,82% siswa mencapai ketuntasan dengan KKM 70, dan rata-rata nilai post-test siswa adalah 74,75, yang menunjukkan respons positif terhadap bahan ajar. Simpulan penelitian ini adalah bahan ajar matematika berbasis GeoGebra yang dikembangkan telah memenuhi kriteria valid, praktis, dan efektif, serta memberikan dampak positif terhadap peningkatan kemampuan pemahaman konsep fungsi siswa. Kata kunci: bahan ajar, GeoGebra, pemahaman konsep Abstract: This research aimed to develop and produce GeoGebra-based mathematics teaching materials that meet the criteria of validity, practicality, and effectiveness, as well as analyze the impact of using these teaching materials on students' conceptual understanding abilities. The research method used is research and development (Research & Development/R&D) with the Tessmer model formative evaluation type. The subjects in this study consisted of 22 students of class VIII A of SMP 2 Latambaga. Data collection techniques include observation, interviews, questionnaires, tests (questions), and documentation, while the data analysis technique used is qualitative descriptive analysis. The study results showed that the percentage of validity of open teaching materials according to material experts and media expertsreached 87.17%. Meanwhile, the level of practicality based on one-on-one group assessment was 84.29%, and it was 87.62% from small groups. 81.82% of students achieved completion with a Minimum Mastery Criteria (MMC) of 70 and an average student posttest score of 74.75 which showed a positive response to the teaching materials. This study concludes that the GeoGebra-based mathematics teaching materials developed have met the criteria of being valid, practical, and effective, and positively impacting students' abilities in understanding the concept of functions. Keywords: teaching materials, GeoGebra, conceptual understanding
ANALYSIS OF STUDENTS DIFFICULTIES IN SOLVING MATHEMATICAL PROBLEMS BASED ON HIGHER ORDER THINKING SKILLS FOR JUNIOR HIGH SCHOOL STUDENTS Surlam, Ananda Eka Puspita; Chairuddin, Chairuddin; Tahir, Tahir
JME (Journal of Mathematics Education) Vol 10, No 1 (2025): JME
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i1.2711

Abstract

Higher-order thinking skills (HOTS) are essential in fostering students' critical and creative problem-solving abilities, particularly in mathematics. This study aims to determine the level of difficulty students face in solving HOTS-based mathematics problems. This qualitative descriptive study was conducted at SMPN 1 Latambaga with 23 eighth-grade students (class VIII A) as participants. The instruments, comprising tests and interviews, were constructed based on three indicators of HOTS: analyzing, evaluating, and creating. From the participants, six students were selected to represent three ability levels: high, moderate, and low. Students in the high category met all HOTS indicators. Moderate-level students achieved analyzing and evaluating but struggled with the creating aspect. Low-level students were only able to analyze and faced difficulties in evaluating and creating solutions. Their challenges included misapplication of principles, procedural errors, and verbal misunderstandings of question instructions. The findings highlight the need for targeted strategies to enhance students' critical and creative thinking in solving contextual and open-ended mathematics problems.
ANALYSIS OF STUDENTS CREATIVE THINKING ABILITY IN SOLVING HOTS PROBLEMS BASED ON GENDER DIFFERENCES Reza, Muhammad; Jahring, Jahring; Chairuddin, Chairuddin
JME (Journal of Mathematics Education) Vol 10, No 1 (2025): JME
Publisher : Universitas Sembilanbelas November Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/jme.v10i1.2712

Abstract

This study aims to describe the differences in creative thinking skills ofSMA Negeri 1 Wundulako students in the 2024/2025 academic year tocompare male and female students performance in solving HOTSquestions. This research employed a qualitative approach. The subjects inthis study were class XI students at SMA Negeri 1 Wundulako, using atest developed based on HOTS (High Order Thinking Skill) and creativethinking indicators. Furthermore, based on the test results, six studentswere selected, consisting of three boys and three girls representing high,medium, and low levels of creative thinking, to be further investigated byinterviews. The results showed that, Female students performed better influency, flexibility, and elaboration, while male students excelled only inoriginality. Based on these results, it can be concluded that female studentsdemonstrated greater ability in analyzing information and elaboratingproblem solving
Pengembangan Media Pembelajaran Flipbook Menggunakan Aplikasi Heyzine untuk Meningkatkan Kemampuan Pemahaman Konsep Matematika Siswa Tia, Elis; Jahring, Jahring; Chairuddin, Chairuddin
JagoMIPA: Jurnal Pendidikan Matematika dan IPA Vol. 6 No. 1 (2026): JagoMIPA: Jurnal Pendidikan Matematika dan IPA
Publisher : Yayasan Pendidikan Bima Berilmu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53299/jagomipa.v6i1.3927

Abstract

Penelitian ini memiliki tujuan untuk mengembangkan dan menciptakan media pembelajaran flipbook menggunakan aplikasi heyzine yang valid, praktis, dan efektif untuk meningkatkan kemampuan pemahaman konsep matematika siswa. Penelitian ini merupakan penelitian dan pengembangan (research and development) dengan model ADDIE yang meliputi tahap analysis, design, development, implementation, dan evaluation. Implementasi media yang dikembangkan dilakukan di SMA Negeri 01 Bombana dengan melibatkan 19 orang siswa kelas X. Instrumen penelitian meliputi lembar validasi ahli, angket respon siswa, dan tes pemahaman konsep matematika siswa. Data dikumpulkan melalui validasi ahli, penyebaran angket, dan pemberian tes, kemudian dianalisis menggunakan analisis deskriptif kuantitatif. Hasil penelitian menunjukkan tingkat validitas ahli materi sebesar 97,64% dengan kategori sangat valid dan ahli media sebesar 88,82% dengan kategori sangat valid. Semenstara itu, tingkat kepraktisan berdasarkan angket respon siswa sebesar 85% dengan kategori sangat praktis. Keefektifan media ditunjukkan oleh peningkatan kemampuan pemahaman konsep matematika  siswa, yang ditinjau dari nilai rata-rata N-gain sebesar 0,61 pada kategori sedang serta peningkatan ketuntasan belajar secara klasikal dari 0% pada pretest menjadi 68,42% pada posttest. Menindaklanjuti  temuan tersebut, media pembelajaran flipbook menggunakan aplikasi heyzine dinyatakan layak digunakan dan efektif dalam meningkatkan kemampuan pemahaman konsep matematika siswa.
Co-Authors Achmad Salido Ade Riska Sanjani Afzil Ramadian Agus Kurniawan Agus Martins Akbar Nasrum Akob, Bachtiar Al Tasa, Fiza Rauzika Allif Syahputra Bania Amirul Mukminin ANDIKA SAPUTRA Arafah, Burhanuddin Arhita, Siska Arma Wangsa Aswin Aswin Aswin Aswin Ayu Asriani Baharudin Baharudin Bangun, Ahmad Darwin Basri, Teuku Hasan Cut Nuraini Dayana Sabila Husain Dewi Andriani Dian Ulfa Sari Dwi Permatasari Efendi Barus, Efendi Encep Sopandi, Encep Erfina Erfina Erfina, Erfina Fairus, Fairus Farman, Farman Febrian , Fadri Febrian, Fadri Fitri Fitri Fitriyani Hali Fitriyani Hali Fitriyani Hali Fitriyani Hali, Fitriyani Gulton, Jamahir Guntur Arie Wibowo, Guntur Arie Halidin S.Pd., M.PMat Halidin, Halidin Hannani, Nabilah Harry Agusnar Hasrina, Noliza Herlina Herlina Herwanto, Patah Hidayati, Ully Husnaini, Nadia Indra Purnomo Irajuana Haidar Irma Dewi Isda Isra Djabbar Jahring Judijanto, Loso Jumino Suhadi, Jumino Karunia, Karunia La Ode Sirad Manugeren, M Marbun, Roberta Maria Ulfa Marillah, Dima Marniati Marniati Marniati Marniati, Marniati Martins, Agus Meiliati, Rafika Muhammad Fuad Muhammad Reza Muhammad, Dian Najihatul Faridy Nasarudin Nasarudin Nasruddin Nasruddin Nasruddin Nasruddin Nisa Miftachurohmah Nuraini Nuraini Nurliza Lubis Nuzwaty, Nuzwaty Ovan Ovan Perangin Angin, Elsa Sucita PURBA, NORA MARIHOT Purnama Sari, Riezky Rachmawati Rachmawati Rahmah Fithriani Rahmi, Ummi Rahmiati Rahmiati Rahmiati Ramadhan, Nur Ihsan Rayhan Amadius Weihan Ridhonul Rahman Rinda Rini Mastuti Rusyda Auliya Saiful Anwar Matondang Salido, Achmad Sanjani, Ade Riska Sanjaya, Muhammad Arif Sari, Dian Ulfa Sari, Dian Ulfa Sari, Putri Mustika Sarimuddin, Sarimuddin Setiana, Diana sirad, La Ode Sitti Mutia Umasugi Siwi, Purwanto Sufri Mashuri Surlam, Ananda Eka Puspita Susanti, Gemi Syukur, Moh Rezky Tahir Tahir Tahir Tahir Tahir, Tahir Tasni, Nurfaida Tia, Elis Tiara Wilda Purnama Sari Zulida, Evi