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All Journal Jurnal Riset Pendidikan Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika AlphaMath: Journal of Mathematics Education JPPM (JURNAL PENELITIAN DAN PEMBELAJARAN MATEMATIKA) Media Penelitian Pendidikan : Jurnal Penelitian dalam Bidang Pendidikan dan Pengajaran JPM (Jurnal Pemberdayaan Masyarakat) Jurnal PAJAR (Pendidikan dan Pengajaran) Indiktika : Jurnal Inovasi Pendidikan Matematika JURNAL PENDIDIKAN TAMBUSAI CARTESIUS : Jurnal Pendidikan Matematika Imajiner: Jurnal Matematika dan Pendidikan Matematika MES: Journal of Mathematics Education and Science Edunesia : jurnal Ilmiah Pendidikan Range : Jurnal Pendidikan Matematika Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Prosiding Conference on Research and Community Services Soeropati: Journal of Community Service Prosiding Konferensi Nasional PKM-CSR Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Cartesius Electronic Journal of Education, Social Economics and Technology International Journal of Trends in Mathematics Education Research (IJTMER) JNPM (Jurnal Nasional Pendidikan Matematika) BULLET : Jurnal Multidisiplin Ilmu AMMA : Jurnal Pengabdian Masyarakat Jurnal Ilmiah Ekonomi dan Manajemen Jurnal Pengabdian Masyarakat dan Riset Pendidikan JURNAL RUMPUN MANAJEMEN DAN EKONOMI
Simanjuntak, Sinta Dameria
Universitas Katolik Santo Thomas
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Implementasi Pendekatan TaRL untuk Meningkatkan Hasil Belajar Matematika Siswa Kelas IX SMPN 23 Medan : Penelitian Yossie Camelia Sari Br Tarigan; Sinta Dameria Simanjuntak
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 3 No. 4 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 3 Nomor 4 (April 2025
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v3i4.578

Abstract

Thought for a second This study aims to describe the improvement in ninth-grade students’ mathematics learning outcomes at SMP Negeri 23 Medan following the implementation of the Teaching at the Right Level (TaRL) approach. The research employed a classroom action research design, with the subjects being students of class IX-B at SMP Negeri 23 Medan during the second semester of the 2024/2025 academic year. The research instrument used was a series of formative assessments. Data were collected through four phases: planning, action, observation, and reflection. Data analysis was conducted using a descriptive quantitative approach: first, student scores were tabulated and their classical completeness percentages calculated; scores meeting the school’s minimum completeness criterion (KKM) of 75 were considered to have reached mastery. The results showed that in Cycle I, 53.57% of students achieved mastery, which then increased to 82.1% in Cycle II. Since the classical completeness target was met in Cycle II, the research was concluded at that point. Based on these findings, it can be concluded that the use of the TaRL approach in instruction can enhance students’ mathematics learning outcomes.
Pelatihan SPSS pada Guru-Guru di Sekolah Dasar Negeri 173529 Tampahan Simanjuntak, Sinta Dameria; Usman, Ari
Jurnal Pemberdayaan Masyarakat Vol 5 No 2 (2020): November
Publisher : Direktorat Penelitian dan Pengabdian kepada Masyarakat (DPPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21067/jpm.v5i2.3652

Abstract

The teachers at SD 173529 are teachers with the status of Civil Servants (PNS). Teachers with the status of civil servants must write scientific papers when going up to a position or class. The problem is writing scientific papers and data processing. The solution offered to overcome this problem is SPSS training include processing research data and how to read the SPSS output to be narrated in the research results. The method used consisted of group discussions, deliberations, in-house training and workshops. The results from this activity are the teacher gives a positive response to the training activities include 100% of teachers liked the training material, the modules used, the way of learning, the way the instructor taught. The other results are the teachers stated that the training material is new (71.42%), the modules used are new (85.71%), the learning method implemented is new (85.71%), the method of teaching is a new way of teaching (85,71%), the teacher expressed interest in using SPSS in processing research data and in training activities (100%).
Penggunaan Mentimeter Sebagai Alat Evaluasi Interaktif dalam Pembelajaran Matematika di SMP Negeri 31 Medan Sinta Dameria Simanjuntak; Derma Yanti Sitanggang; Esra Ayu Lamria; Ewilda Sinaga; Nurhalimah Manurung; Syafwani Sadanta Capah; Yanti Pertiwi Harahap; Yenni Andryani Br. Tarigan
AMMA : Jurnal Pengabdian Masyarakat Vol. 3 No. 11 : Desember (2024): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan kualitas pembelajaran matematika melalui pemanfaatan aplikasi Mentimeter sebagai alat evaluasi interaktif. Mentimeter, sebagai platform berbasis teknologi, memungkinkan guru membuat evaluasi yang lebih menarik dan dinamis melalui fitur seperti kuis, polling, dan word cloud. Program ini dilaksanakan di SMP Negeri 31 Medan dan melibatkan pelatihan bagi guru matematika untuk meningkatkan keterampilan mereka dalam menggunakan teknologi sebagai bagian dari proses pembelajaran.Hasil kegiatan menunjukkan bahwa pelatihan ini berhasil meningkatkan pemahaman guru tentang cara memanfaatkan Mentimeter secara efektif. Guru mampu merancang evaluasi interaktif, memberikan umpan balik langsung kepada siswa, dan menganalisis hasil evaluasi secara real-time. Penerapan Mentimeter terbukti meningkatkan keterlibatan siswa dalam pembelajaran matematika, menciptakan suasana belajar yang lebih interaktif, dan membantu siswa memahami materi secara lebih baik.Namun, beberapa kendala yang dihadapi termasuk keterbatasan akses internet dan waktu yang diperlukan untuk memahami fitur-fitur aplikasi. Oleh karena itu, disarankan adanya pelatihan lanjutan serta peningkatan infrastruktur teknologi di sekolah untuk mendukung keberlanjutan program ini. Dengan demikian, penggunaan Mentimeter dapat menjadi solusi inovatif dalam mengatasi tantangan pembelajaran matematika di era digital
Revealing Students’ Computational Thinking Error Patterns in Solving Two-Variable Linear Inequality Systems Israil Sitepu; Delvi Kristiani Jaluhu; Sinta Dameria Simanjuntak; Ribka Kariani br Sembiring
AlphaMath : Journal of Mathematics Education Alphamath: Vol. 12, No. 1, May 2026
Publisher : Department of Mathematics Education, Universitas Muhammadiyah Purwokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/alphamath.v12i1.30386

Abstract

This study aims to identify and describe patterns of students’ computational thinking errors in solving systems of linear inequalities in two variables. Specifically, it examines errors occurring at each stage of computational thinking, such as problem decomposition, pattern recognition, abstraction, and algorithm construction, as well as the underlying factors contributing to these errors. A qualitative descriptive approach was employed. The participants consisted of 36 tenth-grade students. Data were collected through written tests, observation, and semi-structured interviews to explore students’ cognitive processes in depth. The data were analyzed through data reduction, data display, and conclusion drawing. The findings indicate that students experienced errors at all stages of computational thinking. Students encountered difficulties identifying relevant information during problem decomposition, recognizing conceptual relationships during pattern recognition, transforming problems into appropriate mathematical representations during abstraction, and constructing systematic solution procedures during algorithm construction. These errors were primarily attributed to insufficient conceptual understanding, difficulties in interpreting problem statements, and limitations in formulating effective problem-solution strategies. These findings provide valuable insights into students’ learning difficulties and may serve as a foundation for designing more effective instructional strategies to enhance students’ computational thinking skills.
Integrasi Realistic Mathematics Education, Culturally Responsive Teaching, dan Artificial Intelligence untuk Keterampilan 4C Abad 21: Sebuah Tinjauan Sistematis Sondang Noverica; Sinta Dameria Simanjuntak
Indiktika : Jurnal Inovasi Pendidikan Matematika Vol. 8 No. 2 (2026): Indiktika : Jurnal Inovasi Pendidikan Matematika
Publisher : FKIP Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/indiktika.v8i2.21423

Abstract

This study aims to systematically review the literature on Realistic Mathematics Education (RME), Culturally Responsive Teaching (CRT), Artificial Intelligence (AI), and 21st-century skills (4C) to identify and bridge research gaps in mathematics education. The research employed a Systematic Literature Review (SLR) combined with bibliometric analysis using the PRISMA protocol and supported by VOSviewer and Biblioshiny software. From the Scopus database, 79 articles met the inclusion criteria and were analyzed based on publication trends, author collaboration networks, citation structures, and qualitative synthesis. The findings indicate a significant increase in research on RME and AI over the past decade, while the integration of CRT remains limited despite its philosophical alignment with RME. This study identifies five major research gaps—namely theoretical, empirical, methodological, population, and evidential. The integration of RME, CRT, and AI has strong potential to form an adaptive, contextual, and culturally responsive mathematics learning model that strengthens 21st-century competencies. These findings provide new directions for developing inclusive and technology-based mathematics education.
Profiling 4C Skills Through PISA-Based Mathematics Tasks: A Contextual Analysis of Junior High School Students Sinta Dameria Simanjuntak; Sahat Saragih; Israil Sitepu; Sondang Noverica
Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Vol. 13 No. 2: April 2025
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/j-ps.v13i2.15294

Abstract

The 4C skills—Critical Thinking, Creativity, Communication, and Collaboration—are essential for preparing students to navigate 21st-century challenges. However, results from PISA 2022 and Indonesia's Education Report 2024 reveal that foundational competencies remain low, particularly in rural contexts. This study aims to explore the manifestation of 4C skills among ninth-grade students at SMP Budhi Dharma Balige, North Sumatra, through performance on PISA-based mathematics questions. Employing a qualitative descriptive design, data were collected from 31 students using two PISA tasks and an unstructured teacher interview. Responses were assessed using a rubric-informed framework, and analysis followed the Miles and Huberman model. Results show that while students demonstrate strong communication and procedural reasoning (96.77% correct in Q1 Part 2), performance in critical thinking and argumentation remains limited (only 35% success in Q2 Part 3). The main barrier is the lack of integrated instructional strategies that promote higher-order and collaborative learning. The study concludes that while 4C skills are beginning to develop, their progression is fragmented and requires targeted pedagogical reforms. Recommendations include the use of project-based learning, culturally responsive instruction, and formative assessments to ensure equitable 4C development in under-resourced schools.
Co-Authors Ahyaningsih, Faiz Argaretha, Frida Marta Ari Usman Ari Usman, Ari Ariyadi Wijaya Aulia Tara Naipospos Bonifasia Gultom Capah, Syafwani Sadanta Delvi Kristiani Jaluhu Derma Yanti Sitanggang Dyan Wulan Sari Hs Esra Ayu Lamria Ewilda Sinaga Fadilah, Nina Fauzi, KMS Muhammad Amin Febiyola Br Ginting Gulo, Inne Kristina Gurning, Riris Harahap, Yanti Pertiwi Imelda Imelda Imelda Imelda Imelda Imelda Israil Sitepu Izwita Dewi Juliana Juliana Juliana Juliana Siregar, Santi Maidinse Hutasoit Manullang, Six Martawati Manurung, Nurhalimah Mukhtar Mukhtar Nenti Silitonga Nurhalimah Manurung Pane, Rezeki Noris Panjaitan, Rida Mawati Rezeki Noris Pane Sitorus Pane Ribka Kairani Sembiring Ribka Kariani Br Sembiring Romega Tinambunan Sahat Saragih Sahat Saragih Samuel Pardede Sembiring, Ribka Kariani Siburian, Rosinta Sidabutar, Mynora Sihombing, Imelda Silaban, Patri Simatupang, Esra Ayu Lamria Sinabang, Esra Sinaga, Ewilda Sinaga, Ferry Hendiko Sinaga, Winarti Siregar, Santi Juliana Sitanggang, Derma Yanti Sitanggang, Rizka Pahmawati Regina Sitepu, Israel Sitompul, Pardomuan Sondang Noverica Sorta Lumbantoruan Sugiman Sugiman Sugiman Sugiman Syafwani Sadanta Capah Tarigan, Jesika Tarigan, Yenni Andryani Windah Maria Mutiara Tamba Wulan Sari HS, Dyan Yanti Pertiwi Harahap Yenni Andryani Br. Tarigan Yossie Camelia Sari Br Tarigan