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All Journal Jurnal Infinity Kreano, Jurnal Matematika Kreatif-Inovatif AKSIOMA: Jurnal Program Studi Pendidikan Matematika E-Dimas: Jurnal Pengabdian kepada Masyarakat Math Didactic: Jurnal Pendidikan Matematika Desimal: Jurnal Matematika Dinamisia: Jurnal Pengabdian Kepada Masyarakat Journal of Honai Math Jurnal Cendekia : Jurnal Pendidikan Matematika PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Ilmiah Pendidikan Citra Bakti JPMI (Jurnal Pembelajaran Matematika Inovatif) Jurnal Pengabdian Masyarakat Borneo Management Studies and Entrepreneurship Journal (MSEJ) Asimtot : Jurnal Kependidikan Matematika Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang SEPREN: Journal of Mathematics Education and Applied Range : Jurnal Pendidikan Matematika LOSARI: Jurnal Pengabdian Kepada Masyarakat Prima Abdika: Jurnal Pengabdian Masyarakat STRATEGY : Jurnal Inovasi Strategi dan Model Pembelajaran Journal of Education Research Komunita: Jurnal Pengabdian dan Pemberdayaan Masyarakat Riemann : Research of Mathematics and Mathematics Education Indonesian Educational Research Journal Jurnal Infinity Jurnal Ilmu Pendidikan dan Bahasa Jurnal Jendela Matematika Jurnal Pendidikan MIPA Jurnal Pendidikan Progresif Jurnal Ilmiah Pendidikan Citra Bakti Senadika
Samuel I. Leton
Universitas Katolik Widya Mandira
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Public Health Social Sciences Transportation Other

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Pengaruh Penggunaan Media Sosial Terhadap Prestasi Belajar Matemaris Siswa SMP Anggerini Horlians Ina Wonga; Samuel Igo Leton
JURNAL JENDELA MATEMATIKA Vol. 4 No. 01 (2026): Jurnal Jendela Matematika: Edisi Januari 2026
Publisher : CV. Jendela Edukasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57008/jjm.v4i01.1638

Abstract

Media sosial telah menjadi bagian penting dalam kehidupan siswa, termasuk dalam dunia pendidikan. Platform seperti WhatsApp, Instagram, TikTok, dan YouTube kini digunakan tidak hanya sebagai sarana hiburan, tetapi juga sebagai alat bantu belajar. Penggunaan media sosial yang tepat dapat mendukung pemahaman konsep pelajaran, termasuk matematika. Namun, penggunaan yang berlebihan dan tidak terkontrol justru dapat menurunkan konsentrasi dan mengganggu hasil belajar. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan media sosial terhadap prestasi belajar matematika siswa kelas IX SMPK St. Agustinus Adisucipto Penfui Kupang. Penelitian ini menggunakan pendekatan kuantitatif dengan metode ex post facto. Sampel dalam penelitian ini berjumlah 26 siswa. Teknik pengumpulan data dilakukan melalui angket penggunaan media sosial dan dokumentasi nilai ujian matematika. Data dianalisis menggunakan uji korelasi Pearson dan regresi linier sederhana dengan bantuan SPSS. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang signifikan antara penggunaan media sosial dan prestasi belajar matematika siswa. Temuan ini menunjukkan perlunya pengelolaan penggunaan media sosial secara bijak agar dapat menunjang proses pembelajaran yang lebih optimal.
Utilizing e-comic media for differentiated learning: A Realistic Mathematics Education approach to stimulate learning interest Nelly Fitriani; Samuel Igo Leton
Journal of Honai Math Vol. 7 No. 1 (2024): Journal of Honai Math
Publisher : Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30862/jhm.v7i1.513

Abstract

The primary aim of this study is to ascertain the learning preferences of junior high school students and evaluate their interest in mathematics following instruction utilizing e-comic media grounded in realistic mathematics education within a framework of differentiated learning. Employing a mixed methods approach with an exploratory sequential design, the study targets junior high school students in the West Bandung region, with a cohort of 30 eighth-grade students selected as the sample. Questionnaires serve as the primary instruments to discern students' learning styles. Qualitative analysis involves scrutinizing these styles vis-à-vis their learning requisites. The ensuing analysis informs the customization of instructional media tailored to students' preferences, subsequently validated by experts. The study culminates in administering interest assessment questionnaires post-instruction. Findings and data analysis reveal three predominant learning tendencies among students: visual (37%), auditory (20%), and kinesthetic dominated (43%). The developed instructional media, validated and tested for efficacy, effectively caters to these learning styles. Application of this media demonstrates heightened interest in learning mathematics compared to traditional instructional methods.
PENGEMBANGAN BAHAN AJAR AUGMENTED REALITY SCAN TO LEARN PADA MATERI PERSAMAAN DAN PERTIDAKSAMAAN LINEAR Samuel Igo Leton
Asimtot : Jurnal Kependidikan Matematika Vol. 7 No. 01 (2025): Asimtot: Jurnal Kependidikan Matematika | Juni 2025 - November 2025
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Widya Mandira

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30822/fcegbp21

Abstract

Latar belakang penelitian ini adalah masih dominannya pembelajaran prosedural pada materi aljabar awal serta keterbatasan bahan ajar dalam memfasilitasi pemahaman konseptual dan visualisasi proses matematis yang bersifat dinamis. Penelitian menggunakan pendekatan Research and Development (R&D) dengan model pengembangan Hannafin dan Peck yang meliputi tahap needs assessment, design, serta development and implementation. Subjek uji coba terdiri atas 25 siswa SMP. Data dikumpulkan melalui lembar validasi ahli, observasi keterlaksanaan pembelajaran, angket respons siswa, tes hasil belajar, dan observasi aktivitas siswa. Hasil penelitian menunjukkan bahwa bahan ajar yang dikembangkan memenuhi kriteria valid, praktis, dan efektif. Validitas berada pada kategori sangat baik berdasarkan penilaian ahli. Kepraktisan ditunjukkan oleh keterlaksanaan pembelajaran yang optimal dan respons siswa dengan rerata skor 3,22 (kategori praktis). Keefektifan tercermin dari ketuntasan belajar sebesar 100% dengan nilai rata-rata 88,4 serta aktivitas belajar siswa yang aktif. Temuan ini menunjukkan bahwa integrasi bahan ajar cetak dengan dukungan digital yang fleksibel dan terkontrol dapat meningkatkan pemahaman konseptual siswa pada materi PLSV-PtLSV
Multidimensional Analysis of Algebraic Errors in Integrated Problems: A Study in Timor Leste Yustinus Didimus Nai; Henrique de Fatima Marques; Yohanes Ovaritus Jagom; Kristoforus Djawa Djong; Samuel Igo Leton; Agapitus Hendrikus Kaluge; Maria Gracia Manoe Gawa; Meryani Lakapu
Riemann: Research of Mathematics and Mathematics Education Vol. 8 No. 2 (2026): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v8i2.158

Abstract

This study aims to identify and describe the types of errors made by students in solving integrated problems involving arithmetic sequences and series combined with systems of linear equations in two variables, as well as to analyze the characteristics of algebraic understanding reflected in their solution processes. The research employed a descriptive qualitative approach involving 31 students at Instituto Escola Secundária Técnica Vocacional Católica Mater Misericordiae (IESTVC-MM), Timor-Leste. The research instrument consisted of a single integrated problem-solving task designed to require coordination of symbolic representation, formula application, algebraic manipulation, and result interpretation. Data were analyzed through error coding based on students’ written solution steps. The findings indicate that although most students were able to construct the initial mathematical model correctly, multidimensional errors were still identified, including incomplete, procedural, conceptual, notational, and numerical errors. Some students even obtained correct final answers through procedures that were not conceptually valid. These findings suggest that, within the context of the analyzed integrated task, students’ algebraic understanding may not yet be fully integrated across conceptual, procedural, and representational dimensions, as reflected in their solution processes. Therefore, the results highlight the potential value of designing algebra instruction in a more integrative and diagnostic manner to support the coherence of students’ mathematical thinking.
Co-Authors Agapitus Hendrikus Kaluge ALOYSIUS JOAKIM FERNANDEZ Amsikan, Oktovianus Yongki Anggerini Horlians Ina Wonga Antonius Rewatus Apolonia Letekina Uran Apridus K. Lapenangga Benu, Cindy Ahia Pricilia Dosinaeng, Wilridus Beda Nuba Dosinaneg, Wilfridus Beda Nuba Ellen A Saubaki Faot, Elisabeth Iga Mawarni Feliksitas M. Muda Fitriani, Nelly Fransiska Meni Oeleu Gisela Elfira Mayratih Guterres, Ilda Harum, Elvadus Yovinam Henidin, Theresia Henny Angri Manafe Henrique de Fatima Marques Indira Krisanti Lengkong Irmina Veronika Uskono Kapitan, Laura V Koly, Agaripa Kristoforus Djawa Djong Laka, Anastasia Lorensa Limbu, Damita Luh Putu Ratna Sundari Luon, Maria Adriani Pulo Madar Aleksius Manoe Gawa, Maria Gracia Maria Gracia Manoe Gawa Maria J Jaiman Maria Suciati Mberu, Yuliana Bhara Meko, Maria Krisanti Meryani Lakapu Naomi Teti Ngedi1 Natalia Magdalena Rafu Mamulak Nelly Fitriani Nelly Fitriani, Nelly Ni Ketut Artanti Agustini Patrisius Batarius Pusaka, Semerdanta Putriyani Lopes, Gratia Ina Ruminah Ruminah, Ruminah Sasi, Maria Roswita Sau, Antonius Arnoldus Janssen Saubaki, Ellen A Simon Sia Niha Tule, Philipus Vincent Gaspersz W.Sogen, Paskalia Gasela Weluk, Kristina Wilfridus Beda Nuba Dosinaeng Wilfridus Beda Nuba Dosinaeng Yohana Rina Rowa Yohanes Ovaritus Jagom Yustinus Didimus Nai