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All Journal Jurnal Pendidikan Matematika Undiksha JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI P2M STKIP Siliwangi SITEKIN: Jurnal Sains, Teknologi dan Industri Jurnal Riset Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Teknologi Informasi dan Ilmu Komputer Al-Jabar : Jurnal Pendidikan Matematika JOIV : International Journal on Informatics Visualization KALAMATIKA Jurnal Pendidikan Matematika PRISMA Faktor Exacta Jurnal Pengabdian Pada Masyarakat Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Numeracy : Jurnal Ilmiah Pendidikan Matematika BAREKENG: Jurnal Ilmu Matematika dan Terapan JMM (Jurnal Masyarakat Mandiri) JTAM (Jurnal Teori dan Aplikasi Matematika) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Indiktika : Jurnal Inovasi Pendidikan Matematika Martabe : Jurnal Pengabdian Kepada Masyarakat KOMPUTIKA - Jurnal Sistem Komputer Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Mathvision : Jurnal Matematika GERVASI: Jurnal Pengabdian kepada Masyarakat MES: Journal of Mathematics Education and Science Jurnal Penelitian Pembelajaran Matematika Sekolah Jurnal Eduscience (JES) Dedikasi: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Borneo Jurnal Absis : Jurnal Pendidikan Matematika dan Matematika J-PiMat : Jurnal Pendidikan Matematika Jurnal Magister Pendidikan Matematika (JUMADIKA) Jurnal Abdi Insani Abdimasku : Jurnal Pengabdian Masyarakat Journal of Innovation Information Technology and Application (JINITA) Range : Jurnal Pendidikan Matematika Jubindo: Jurnal Ilmu Pendidikan Bahasa dan Sastra Indonesia Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan Journal of Research in Mathematics Trends and Technology JAMBURA JOURNAL OF PROBABILITY AND STATISTICS JUPIKA: JURNAL PENDIDIKAN MATEMATIKA Jurnal Diferensial Jurnal Penelitian Inovatif MATH-EDU: Jurnal Ilmu Pendidikan Matematika Jurnal Algoritma Smart Society: Community Service and Empowerment Journal Fraction: Jurnal Teori dan Terapan Matematika Jurnal Pengabdian Sains dan Humaniora Malcom: Indonesian Journal of Machine Learning and Computer Science IC Tech: Majalah Ilmiah Parameter: Jurnal Matematika, Statistika dan Terapannya Kreativasi: Journal of Community Empowerment PADIMAS: Jurnal Pengabdian Masyarakat Journal of Mathematics, Computation and Statistics (JMATHCOS) Jurnal Jendela Matematika Jurnal Pendidikan MIPA Journal on Mathematics Education Trigonometri : Jurnal Matematika IC Tech: Majalah Ilmiah Media Pendidikan Matematika Babakti: Journal of Community Engangement
Simarmata, Justin Eduardo
Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Timor, Indonesia
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PENERAPAN TEKNOLOGI OLAHAN MAKANAN BERBAHAN IKAN LAUT DAN DAUN KELOR SEBAGAI UPAYA PENINGKATAN EKONOMI DAN PENCEGAHAN STUNTING Chrisinta, Debora; Simarmata, Justin Eduardo; Ledheng, Ludgardis; Gelu, Leonard Peter; Sukerti, Ni Wayan; Gitakarma, Made Santo; Mardana, Ida Bagus Putu
JMM (Jurnal Masyarakat Mandiri) Vol 10, No 1 (2026): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v10i1.36180

Abstract

Abstrak: Program Kosabangsa di Desa Oepuah Selatan, Kabupaten Timor Tengah Utara, dilaksanakan sebagai upaya mengatasi rendahnya produktivitas usaha rumah tangga dan tingginya prevalensi stunting yang dipengaruhi oleh keterbatasan akses pangan bergizi dan pengelolaan usaha berbasis teknologi. Program ini bertujuan untuk meningkatkan kapasitas produksi, manajemen, dan pemasaran kelompok industri rumah tangga berbasis ikan, serta memperkuat peran Posyandu dalam pengelolaan pangan lokal bergizi dan digitalisasi layanan gizi balita. Metode pelaksanaan meliputi sosialisasi, pelatihan, workshop, pendampingan, dan penerapan teknologi tepat guna yang dilaksanakan secara partisipatif. Peserta kegiatan terdiri atas Kelompok Industri Rumah Tangga Nekmese sebanyak 27 orang dan kader Posyandu Desa Oepuah Selatan sebanyak 20 orang. Evaluasi program dilakukan melalui observasi langsung, angket kepuasan mitra, dan analisis capaian indikator kinerja program. Hasil kegiatan menunjukkan adanya peningkatan keterampilan teknis dan manajerial mitra industri sebesar 40% pada aspek produksi dan pengemasan, serta peningkatan penjualan produk olahan ikan sebesar 30%. Pada mitra Posyandu, sebanyak 80% kader mampu mengoperasikan sistem pencatatan gizi berbasis digital secara mandiri, disertai peningkatan kesadaran gizi masyarakat. Program ini berkontribusi dalam meningkatkan nilai ekonomi produk lokal, memperkuat kapasitas layanan gizi masyarakat desa, serta menjadi model kolaborasi pemberdayaan berbasis teknologi dan potensi lokal yang berkelanjutan.Abstract: The Kosabangsa Program in Oepuah Selatan Village, North Central Timor Regency, was implemented to address low household business productivity and high stunting prevalence resulting from limited access to nutritious food and inadequate technology-based enterprise management. This program aimed to enhance production capacity, managerial competence, and marketing of fish-based home industries, as well as to strengthen the role of Posyandu in managing nutritious local food and digitalizing child nutrition services. The implementation methods included socialization, training, workshops, mentoring, and the application of appropriate technology through a participatory approach. The program participants consisted of 27 members of the Nekmese Home Industry Group and 20 cadres of the Oepuah Selatan Posyandu. Program evaluation was conducted through direct observation, partner satisfaction surveys, and performance indicator analysis. The results demonstrated a 40% increase in technical and managerial competencies related to production and packaging, along with a 30% increase in sales of processed fish products. Among Posyandu partners, 80% of cadres were able to independently operate digital nutrition recording systems, accompanied by increased community nutrition awareness. This program contributes to enhancing the economic value of local products, strengthening community-based nutrition services, and providing a sustainable model of technology-driven and locally grounded empowerment.
PEMBERDAYAAN MASYARAKAT LOKAL DALAM PEMBUATAN VIRGIN COCONUT OIL DENGAN TEKNOLOGI ALAT PARUT DAN PERAS SEDERHANA UNTUK MENGOPTIMALKAN PEREKONOMIAN Simarmata, Justin Eduardo; Bukifan, Melkisedik; Gelu, Leonard Peter; Chrisinta, Debora; Sukerti, Ni Wayan; Erlina, Nia; Mardana, Ida Bagus Putu
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 1 (2025): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i1.28127

Abstract

Abstrak: Desa Nian memiliki potensi kelapa yang melimpah, tetapi masyarakat hanya menjualnya dalam bentuk mentah dengan nilai ekonomi rendah. Kelompok Tani Oemanas, dengan 29 anggota, mengalami keterbatasan alat dan teknologi untuk mengolah kelapa menjadi Virgin Coconut Oil (VCO). Program pengabdian bertujuan meningkatkan kapasitas pengolahan kelapa melalui penerapan teknologi sederhana dan pelatihan, dengan fokus pada pengembangan hardskill, seperti penguasaan proses teknis dan penggunaan alat, serta softskill, seperti komunikasi, kerja sama tim, dan manajemen waktu, untuk mendukung keberlanjutan dan efektivitas hasil pengolahan. Metode kegiatan meliputi sosialisasi, workshop, pelatihan teknis, penerapan alat modern seperti mesin parut otomatis dan alat pemeras santan, serta pendampingan dan evaluasi. Evaluasi dilakukan melalui observasi, angket sebanyak 12 pernyataan, dan wawancara. Hasil menunjukkan peningkatan kapasitas produksi hingga 60 botol (100 ml) per minggu, efisiensi waktu produksi meningkat 30%, dan kualitas VCO sesuai standar industri. Sebanyak 85% peserta mampu mengoperasikan alat, dan 80% melaporkan peningkatan pendapatan dari penjualan VCO. Program ini meningkatkan soft skill dan hard skill anggota, tetapi juga mengoptimalkan potensi lokal dan mendukung pencapaian SDGs pada tujuan pekerjaan layak dan pertumbuhan ekonomi.Abstract: Nian Village possesses abundant coconut resources, yet the community predominantly sells them in raw form with low economic value. The Oemanas Farmers Group, comprising 29 members, faces limitations in equipment and technology for processing coconuts into Virgin Coconut Oil (VCO). The community service program aims to enhance the capacity for coconut processing through the application of simple technology and training, with a focus on developing hard skills, such as mastering technical processes and tool usage, as well as soft skills, such as communication, teamwork, and time management, to support the sustainability and effectiveness of the processing outcomes. The methods included socialization, workshops, technical training, implementation of modern tools such as automatic graters and coconut milk presses, as well as mentoring and evaluation. Evaluations were conducted through observation, surveys, and interviews. The results indicated an increase in production capacity to 60 bottles (100 ml) per week, a 30% improvement in production efficiency, and VCO quality that meets industry standards. Additionally, 85% of participants successfully operated the equipment, and 80% reported increased income from VCO sales. This program improved members' soft and hard skills but also optimized local potential and supported SDG goals for decent work and economic growth. 
Estimation of Path Coefficient Parameter Based on The Best RMSEA Value in Structural Equation Modeling Weighted Least Square Simarmata, Justin Eduardo; Mone, Ferdinandus; Chrisinta , Debora; Purnomo, Miko; Matute, Alejandro Jr. V.
RANGE: Jurnal Pendidikan Matematika Vol. 7 No. 2 (2026): Range Januari 2026
Publisher : Pendidikan Matematika UNIMOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jpm.v7i2.10324

Abstract

Structural Equation Modeling (SEM) is a statistical approach widely used to analyze causal relationships between latent and observed variables. A key issue in SEM lies in selecting an appropriate parameter estimation method, as it strongly affects the accuracy and interpretation of results. Among the most common estimation techniques are Maximum Likelihood (ML) and Weighted Least Squares (WLS). This study aims to compare the performance of ML and WLS in estimating path coefficients within SEM analysis. Using simulated data generated with the simulateData() function from a predefined structural model, three scenarios are examined with sample sizes of 500 and 1000. Data transformation procedures are applied to ensure consistency before model testing. Each SEM model is then estimated using both ML and WLS, and the results are evaluated through Root Mean Square Error of Approximation (RMSEA) values obtained from 100 replications. Findings indicate that WLS generally outperforms ML in terms of model fit and stability. In the first scenario with a sample size of 500, WLS achieves a lower average RMSEA (0.0141) compared to ML (0.0172). With a sample size of 1000 in the second scenario, both methods produce similar RMSEA values (0.009 for WLS and 0.0096 for ML), though WLS demonstrates lower variability. In the third scenario, also with a sample size of 1000, WLS records an average RMSEA of 0.0074 versus 0.0092 for ML. Overall, the results suggest that WLS is more effective and reliable than ML in providing accurate parameter estimates across different data conditions and sample sizes.
The Correlation between the Utilization of M3 Board Learning Media and Students’ Learning Outcomes Luruk, Maria Gaudensia; Simarmata, Justin Eduardo; Klau, Kondradus Yohanes
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 10 No. 3 (2025): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v10i3.9043

Abstract

This study aims to determine the correlation between the utilization of M3 board learning media and students’ learning outcomes on the topic of measures of central tendency. This research employed a quantitative approach with a correlational design using the Pearson Product Moment method. The population consisted of two eighth-grade classes with a total of 34 students at SMP Swasta 17 Agustus Webalu, while the sample was class VIII A consisting of 15 students. Data were collected through a questionnaire to measure the utilization of M3 board learning media and a test to assess students’ learning outcomes. The validity test results showed that all 12 questionnaire items were valid, with  , and the reliability test yielded a Cronbach’s Alpha value of 0.776 (> 0.6), indicating that the instrument was reliable. The normality test indicated a significance value of 0.248 (> 0.05), confirming that the data were normally distributed. Pearson correlation analysis revealed a correlation coefficient of 0.2646, categorized as low, and 0.8591, categorized as very strong, indicating a positive correlation between the utilization of M3 board learning media and students’ learning outcomes.      
The Effect of Providing Non-Cognitive Diagnostic Assessments and Realistic Mathematics Learning Approaches to Improve Students' Mathematical Literacy Skills Maria Erwinda Kefi, Winda; Salsinha, Cecilia Novianti; Simarmata, Justin Eduardo
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 10 No. 3 (2025): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v10i3.10544

Abstract

This study aims to determine the effect of providing non-cognitive diagnostic assessments and Realistic Mathematics Education (RME) on improving students' mathematical literacy skills. This study applies a quasi-experimental method with a 2x2 factorial-based research design. Grade VIII students at Naiola State Junior High School were the population and sample in this study. The results of this study show that (1) there are differences in mathematical literacy skills between students who are given non-cognitive diagnostic assessments (students with very high, adequate, low and very low interest in learning); (2) there is a difference in students' mathematical literacy skills between students who are taught conventionally); (3) there is significant interactivity between non-cognitive diagnostic assessments and learning approaches to students' mathematical literacy skills. Thus, non-cognitive diagnostic assessments combined with realistic mathematical learning approaches have an effect on improving students' mathematical literacy skills compared to other treatments.
Deteksi Plagiarisme Dokumen Tugas Menggunakan Algoritma Shingling dan MD5 Fingerprint Chrisinta, Debora; Simarmata, Justin Eduardo; Purnomo, Miko; Santoso, Jaya
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 13 No 1: Februari 2026
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jtiik.2026131

Abstract

Masalah utama dalam lingkungan akademik adalah plagiarisme, yang dapat merusak reputasi institusi dan menghambat proses pembelajaran mahasiswa. Oleh karena itu, untuk mengatasi masalah ini diperlukan sistem deteksi plagiarisme yang efektif dan efisien. Tujuan dari penelitian ini adalah mengimplementasikan algoritma Shingling dan MD5 Fingerprint menggunakan Python untuk mendeteksi kemiripan teks dalam tugas mahasiswa. Data yang digunakan dalam penelitian ini berupa dokumen Word (.docx) berupa tugas akademik, seperti esai dan laporan, yang dikumpulkan dari mata kuliah Data Warehouse. Metode yang digunakan meliputi pra-pemrosesan teks, pembentukan shingle berbasis kata, dan perhitungan Jaccard Similarity untuk mengukur tingkat kemiripan antara dokumen. Hasil penelitian menunjukkan bahwa algoritma Shingling dan MD5 Fingerprint efektif dalam mendeteksi kemiripan teks, bahkan ketika terdapat variasi dalam struktur kalimat atau penggunaan bahasa. Hasil kemiripan divisualisasikan dalam grafik batang, yang menyajikan tingkat kemiripan antar dokumen secara jelas dan ringkas. Sistem ini diharapkan menjadi alat bantu andal bagi dosen dan institusi dalam memantau keaslian karya tulis mahasiswa secara real-time.   Abstract The main issue in the academic environment is plagiarism, which can damage the reputation of institutions and hinder the student learning process. Therefore, an effective and efficient plagiarism detection system is necessary to address this problem. The aim of this study is to implement the Shingling algorithm and MD5 Fingerprint using Python to detect text similarity in student assignments. The data used in this research consists of Word documents (.docx) of academic assignments, such as essays and reports, collected from the Data Warehouse course. The methods used include text preprocessing, word-based shingle formation, and Jaccard Similarity calculation to measure the similarity level between documents. The research results show that the Shingling algorithm and MD5 Fingerprint are effective in detecting text similarity, even when there are variations in sentence structure or language use. Visualization of the results in the form of graphs facilitates the identification of documents with high levels of plagiarism, allowing for further action to maintain academic integrity. This system is expected to be a reliable tool for lecturers and institutions to monitor the authenticity of student writings in real-time.
Evaluating interactive R-Shiny based mathematics learning media through motivation and engagement pathways in border-region schools Simarmata, Justin Eduardo; Purnomo, Miko; Fallo, Kristoforus
Journal on Mathematics Education Vol. 17 No. 1 (2026): Journal on Mathematics Education
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jme.v17i1.pp225-246

Abstract

Persistent disparities in mathematics learning outcomes between urban and border-area schools underscore enduring structural inequities linked to limited access to effective, contextually appropriate digital learning environments. Although technological integration in education has expanded substantially, empirical research examining the pedagogical effectiveness of interactive computational platforms—such as those developed using R-Shiny—remains limited, particularly in geographically marginalized regions. This study investigates the effectiveness of R-Shiny-based interactive mathematics learning media in enhancing students’ conceptual understanding and learning achievement. A quantitative research design employing a pretest–posttest approach was utilized, supported by validated questionnaires administered to 101 tenth-grade students enrolled in senior high schools along the Indonesia-Timor Leste border. Data were analyzed using Confirmatory Factor Analysis (CFA) to establish construct validity and Structural Equation Modeling (SEM) to test hypothesized relationships among learning motivation, student engagement, user satisfaction, conceptual understanding, and perceived academic performance. Descriptive statistics revealed consistent improvements in posttest scores relative to pretest results, signifying measurable gains in conceptual understanding. Moreover, SEM analysis indicated that learning motivation, student engagement, and user satisfaction each exerted positive and statistically significant effects on conceptual understanding, which in turn significantly predicted perceived academic performance. Collectively, these findings suggest that R-Shiny-based interactive media foster not only improved cognitive outcomes but also strengthen motivational and engagement-related processes that mediate mathematics learning in geographically disadvantaged educational settings.
Pengabdian kepada masyarakat melalui pengembangan modul interaktif untuk peningkatan kualitas pembelajaran statistika di SMP Satu Atap Negeri Maumolo Mone, Ferdinandus; Simarmata, Justin Eduardo; Kehi, Yohanes Jefrianus; Laja, Yosepha Patricia Wua; Purnomo, Miko; Chrisinta, Debora; Abi, Roberto; Tavares, Ricson
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 6 (2025): November
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i6.34518

Abstract

Abstrak Pembelajaran Statistika di tingkat SMP sering dianggap sulit oleh siswa karena penyajiannya yang cenderung abstrak dan kurang kontekstual. Kondisi ini juga dialami oleh siswa SMP Satu Atap Negeri Maumolo, khususnya di kelas VIII, yang menunjukkan rendahnya pemahaman konsep dasar Statistika. Oleh karena itu, kegiatan pengabdian kepada masyarakat ini bertujuan untuk mengembangkan dan menerapkan modul interaktif sebagai media pembelajaran yang dapat meningkatkan pemahaman siswa. Mitra kegiatan adalah SMP Satu Atap Negeri Maumolo dengan sasaran 30 siswa kelas VIII yang mengikuti kegiatan selama dua hari, pada tanggal 1 dan 2 Agustus 2025. Metode pelaksanaan meliputi penyusunan modul interaktif, penyampaian materi berbasis kontekstual, diskusi, serta pendampingan dalam mengerjakan latihan soal. Hasil kegiatan menunjukkan peningkatan pemahaman siswa yang terlihat dari peningkatan rata-rata nilai latihan dari 58 pada awal kegiatan menjadi 80 setelah penggunaan modul. Secara kualitatif, siswa menyatakan modul mudah dipahami, tampilannya menarik, serta membantu meningkatkan kepercayaan diri dalam mempelajari Statistika. Lebih dari 85% siswa terlibat aktif dalam diskusi dan mampu menyelesaikan soal dengan baik. Dengan demikian, kegiatan ini memberikan dampak positif dalam mendukung peningkatan kualitas pembelajaran Statistika dan dapat dijadikan model alternatif pembelajaran bagi sekolah-sekolah di wilayah perbatasan. Kata kunci: Pengabdian masyarakat; modul interaktif; statistika; pemahaman siswa; SMP. Abstract Statistics learning at the junior high school level is often perceived as difficult by students due to its abstract presentation and lack of contextual approaches. This condition is also found among eighth-grade students of SMP Satu Atap Negeri Maumolo, who demonstrate limited understanding of basic statistical concepts. Therefore, this community service activity aimed to develop and implement an interactive module as a learning medium to improve students’ comprehension. The partner institution was SMP Satu Atap Negeri Maumolo, involving 30 eighth-grade students who participated in the program over two days, on August 1–2, 2025. The implementation methods included the development of the interactive module, contextual delivery of materials, group discussions, and guided practice in solving problems provided in the module. The results indicated an improvement in students’ understanding, as reflected in the increase of average practice scores from 58 at the beginning of the activity to 80 after the module was applied. Qualitatively, students reported that the module was easy to understand, visually engaging, and helpful in building their confidence in learning Statistics. More than 85% of students actively engaged in discussions and successfully completed the exercises. In conclusion, this activity had a positive impact on improving the quality of Statistics learning and can serve as an alternative model for schools in border regions. Keywords: community service; interactive module; statistics; student comprehension; junior high school.
The Relationship Between Mathematics Anxiety and Problem-Solving Skills among Junior High School Students in Indonesia Marpaung, Rissa Isabella Taruli; Simarmata, Justin Eduardo
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 11 No. 1 (2026): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v11i1.10721

Abstract

Mathematics anxiety is a well-documented affective factor that negatively impacts students’ performance and engagement in mathematics. This study explores the relationship between mathematics anxiety and problem-solving skills among junior high school students in Indonesia. A total of 35 students from Grades 7 and 8 at SMP Sangkara in Medan participated. Mathematics anxiety was measured using a 20-item Likert scale (lower scores indicate higher anxiety), while problem-solving ability was assessed through a five-question open-ended test scored on a 4-point rubric. Descriptive statistics indicated moderate to high mathematics anxiety (M = 33.31, SD = 6.59) and low to moderate problem-solving ability (M = 8.06, SD = 4.33). Pearson correlation analysis revealed a strong, statistically significant positive relationship (r = 0.774, p < 0.001), showing that higher anxiety corresponded to lower problem-solving performance due to the reverse-coded anxiety scale. These findings underscore the importance of addressing affective challenges in mathematics instruction to enhance students’ problem-solving competence.
Pendampingan Teknik Hitung Trachtenberg Sebagai Strategi Peningkatan Kemampuan Numerasi Siswa SMP Negeri Neobat Kefamenanu Purnomo, Miko; Simarmata, Justin Eduardo; Chrisinta, Debora; I Manalu, Adelya; Aprianti, Iis; Binsasi, Eva
Babakti: Journal of Community Engangement Vol 3 No 1 (2026): April
Publisher : Fakultas Teknik, Universitas Singaperbangsa Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/babakti.v3i1.13204

Abstract

Kemampuan numerasi merupakan salah satu kompetensi penting yang harus dimiliki siswa dalam menghadapi tantangan pembelajaran abad ke-21. Namun, dalam praktiknya masih banyak siswa yang mengalami kesulitan dalam melakukan operasi hitung dasar, khususnya pada materi perkalian dan pembagian. Kondisi ini juga ditemukan pada siswa di SMP Negeri Neonbat Kefamenanu yang menunjukkan rendahnya minat belajar matematika serta belum adanya pengenalan metode berhitung alternatif. Oleh karena itu, kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kemampuan numerasi siswa melalui pendampingan teknik hitung Trachtenberg. Kegiatan dilaksanakan melalui beberapa tahapan, yaitu survei lokasi, identifikasi permasalahan mitra, pelaksanaan pelatihan, serta evaluasi dan monitoring. Metode pelaksanaan menggunakan pendekatan partisipatif melalui kegiatan sosialisasi, workshop, dan praktik langsung penggunaan metode Trachtenberg dalam menyelesaikan operasi perkalian dan pembagian. Evaluasi kegiatan dilakukan melalui pemberian tes sebelum dan sesudah pelatihan serta observasi aktivitas siswa selama kegiatan berlangsung. Hasil kegiatan menunjukkan adanya peningkatan kemampuan numerasi siswa yang ditunjukkan oleh kenaikan nilai rata-rata dari 61,0 pada pre-test menjadi 79,5 pada post-test. Selain itu, siswa juga menunjukkan peningkatan minat, keaktifan, dan kepercayaan diri dalam menyelesaikan soal matematika. Dengan demikian, pendampingan teknik hitung Trachtenberg dapat menjadi salah satu strategi alternatif yang efektif dalam meningkatkan kemampuan numerasi siswa.
Co-Authors Abi, Roberto Ade Mirza admin pythagoras, admin Agnes L A Halla Agustinus Giovandi Laki Agustinus Giovandi Laki Ahzan, Z.N. Ahzan, Zulkaidah Nur Aloisius Loka Son Astriani Dewi, Ni Putu Yuni Atencia, Bryant Bennet D Atencia, Bryant Bennet D. Baldemor, Milagros R. Bana, Marten Luter Bano, Elinora Naikteas Bantaika, Aris Benu, Kristiani Benu, Luky Wandika Bernadeta Buik Bete, Hendrika Bete, Maria Erlince Bifel, Maria Gabriela Bait Binsasi, Eva Bone, Dominifridus Cecilia Novianti Salsinha Chrisinta, Debora Debora Exaudi Sirait Dian Grace Ludji Elfrida Nailopo Elin, Lailin Hijriani Elisabet Ersamayori Foeh Elisabeth E Mayori Elizio Victor De Araujo Erlina, Nia Fallo, Kristoforus Ferdinan Rinaldo Tampubolon Ferdinandus Mone Fetronela Rambu Bobu Fitriani Fitriani Fitriani Gelu, Leonard Peter Gelu, Leonard Peter Gerhard-Wilhelm Weber Gusti Firda Khairunnisa H. Bete Hendrika Yeni Meti Hijriani, Lailin Hijriani, Lailin Hutubessy, Aditya I Manalu, Adelya Ida Bagus Putu Mardana Iis Aprianti Iis Aprianti Inggrid Mariana Usifa Jaya Santoso Jeniana Martha Prima Asa Josua Sahala Juventianus Kenjam Juventianus Kenjam Kehi, Sefrinus Kenjam, Juventianus Klau, Kondradus Yohanes Kondradus Yohanes Klau Kono, Metriana Maria Kristofel Bere Nahak Lailin Hijriani Lidu, Maria LUDGARDIS LEDHENG Luruk, Maria Gaudensia Made Santo Gitakarma Maneno, Regolinda Margareta Rodrigues Gomes Margarita Tampani Maria Brigita Niis Nana Maria Delviana Mali Maria Erwinda Kefi, Winda Maria Naimnule Marpaung, Rissa Isabella Taruli Marselinus Banu Matute, Alejandro Jr. V. Melkisedik Bukifan Melkisedik Bukifan Merlin Helentina Napitupulu Miko Purnomo Miko Purnomo mone, ferdinandus Moses Timutang Muhammad Amran Shidik Naimnule, Maria Naisau, Angela Cristina Natalia Emanuela Lelboy Nelciana Talan Nelciana Talan Ni Putu Yuni Astriani Dewi Ni Putu Yuni Astriani Dewi Ni Wayan Sukerti Nia Erlina Nifu, Martha Marsela Nifu, Martha Marsella Oktovianus Mamoh Olo, Maria Regina Pakaenoni, Lusilia Dos Santos Pasaribu, Revi Lestari Patrisius Bauk Peter Gelu, Leonard Pius Thaal, Pius Prudensius Manek Purba, Switamy Angnitha Rita Sila, Vinsensia Ulia Roberto Abi S. A. Purba Sanam, Thofilus Sari, Nur Nilam Seko, Herbert Sele, Yunawati Selestina Nahak Siahaan, Meiva Marthaulina Lestari Sila, Vinsensia Ulia Rita Silfester Faentaono Sirait, Debora Sitti Rosnafi’an Sumardi Sopbaba, Merlina Stanislaus Amsikan Switamy Angnitha Purba Switamy Angnitha Purba Taena, Vinsensia Gerosa Tavares, Ricson Thresia Trivict Semiun Uskono, Yunitha Centriana Venidora Solo, Maria Fransiska Vinsensia Ulia Rita Sila Wihelmina, Maria Wisrance Winda Ade Fitriya B Wua Laja, Yosepha Patricia Yakoba Yusina Muanley Yeni Missa Yohanes Jefrianus Kehi Zulkaidah Nur Ahzan Zulkaidah Nur Azhan