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All Journal Paradikma: Jurnal Pendidikan Matematika Jurnal Biologi Tropis PENDIPA Journal of Science Education Jurnal Basicedu Journal on Education MAJU : Jurnal Ilmiah Pendidikan Matematika Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat JURNAL MATHEMATIC PAEDAGOGIC Jurnal Pendidikan dan Konseling MES: Journal of Mathematics Education and Science Jurnal Eduscience (JES) JURNAL PEMBELAJARAN DAN MATEMATIKA SIGMA (JPMS) Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Bubungan Tinggi: Jurnal Pengabdian Masyarakat BERNAS: Jurnal Pengabdian Kepada Masyarakat Jurnal Tunas JURNAL PENDIDIKAN SAINS SOSIAL DAN AGAMA Pedagogika : Jurnal Pedagogik dan Dinamika Pendidikan Bioscientist : Jurnal Ilmiah Biologi Bulletin of Community Engagement Journal of Education Research Joong-Ki : Jurnal Pengabdian Masyarakat Journal of Advanced Sciences and Mathematics Education Mudabbir: Journal Research and Education Studies KOMMAS: Jurnal Pengabdian Kepada Masyarakat Lensa: Jurnal Kependidikan Fisika JOMLAI: Journal of Machine Learning and Artificial Intelligence Jurnal Basicedu Jurnal Ilmu Pendidikan dan Sosial PIJAR: Jurnal Pendidikan dan Pengajaran Innovative: Journal Of Social Science Research Social Engagement: Jurnal Pengabdian Kepada Masyarakat Abdimas Mandalika Joong-Ki Jurnal Ilmu Sosial dan Humaniora As-Salam: Journal Islamic Social Sciences And Humanities Joong-Ki Young Journal of Social Sciences and Humanities
Sinaga, Christa Voni Roulina
Universitas HKBP Nomensen Pematangsiantar
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Pengaruh Model Flipped Classroom Terhadap Kemampuan Pemahaman Konsep Matematis Siswa Pada Materi Sistem Persamaan Linear Tiga Variabel (SPLTV) Kelas X Situmorang, Cristyani; Simamora, Rianita; Sinaga, Christa Voni Roulina
PIJAR: Jurnal Pendidikan dan Pengajaran Vol. 4 No. 1 (2025): Desember
Publisher : CV Putra Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58540/pijar.v4i1.1241

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model Flipped Classroom terhadap kemampuan pemahaman konsep matematis kelas X SMKS 1 Tamansiswa Pematangsiantar. Sampel pada penelitian ini adalah kelas X MPLB 1 yang berjumlah 30 siswa. Data penelitian diperoleh dari tes dan angket. Angket berfungsi untuk mengetahui apakah siswa telah melaksanakan model Flipped Classroom . Tes berfungsi untuk mengetahui kemampuan pemahaman konsep matematis siswa pada sistem persamaan linear tiga variabel. Tes sebanyak 5 butir soal dan angket sebanyak 20 butir, setelah melalui uji validitas dan reliabilitas dinyatakan valid dan reliabel. Desain yang digunakan dalam penelitian ini adalah one-shot case study. Teknik analisis data menggunakan uji prasyarat yakni uji normalitas dan uji linearitas. Untuk menguji apakah model Flipped Classroom mempengaruhi kemampuan pemahaman konsep matematis digunakan uji regresi linear sederhana. Berdasarkan data penelitian, diperoleh persamaan regresi Y= -91,52 +1,702X. Uji signifikansi pengaruh diperoleh dan thitung > ttabel (18.04> 2,048) atau p (sig.) < 0,05 (0,000 < 0,05) sehingga terdapat pengaruh yang signifikan antara model flipped classroom terhadap kemampuan pemahaman konsep matematis siswa kelas X SMKS 1Tamansiswa Pematangsiantar. Sumbangan varians variabel X (model flipped classroom ) terhadap variabel Y (kemampuan pemahaman konsep matematis) sebesar 91,52%
Pengaruh Model Pembelajaran Kooperatif Tipe TTW Terhadap Kemampuan Pemecahan Masalah Pada Materi SPLTV Kelas X Saragih, Elsha Riyani; Sinaga, Christa Voni Roulina; Marbun, Yanty Maria Rosmauli
PIJAR: Jurnal Pendidikan dan Pengajaran Vol. 4 No. 1 (2025): Desember
Publisher : CV Putra Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58540/pijar.v4i1.1242

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kooperatif tipe TTW terhadap kemampuan pemecahan masalah matematika siswa kelas X Kecantikan SMKS 1 Taman Siswa Pematangsiantar Tahun Ajaran 2025/2026. Jenis penelitian yang digunakan adalah penelitian kuantitatif dengan rancangan one-shot case study. Subjek penelitian terdiri dari 30 siswa kelas X Kecantikan yang diberi perlakuan berupa penerapan model TTW pada materi SPLTV. Instrumen penelitian meliputi tes kemampuan pemecahan masalah matematika serta angket persepsi siswa terhadap model pembelajaran. Hasil analisis regresi linear sederhana menunjukkan bahwa terdapat pengaruh positif antara penerapan model TTW terhadap kemampuan pemecahan masalah matematika siswa dengan koefisien regresi sebesar 0,952. Hasil uji- t diperoleh nilai t hitung = 16,696 lebih besar dari t tabel = 2,048, yang berarti hipotesis diterima. Selain itu, nilai koefisien determinasi sebesar 90,9% menunjukkan bahwa model TTW memberikan kontribusi yang signifikan terhadap peningkatan kemampuan pemecahan masalah, sementara 9,1% dipengaruhi faktor lain. Dengan demikian, dapat disimpulkan bahwa penerapan model pembelajaran kooperatif tipe Think Talk Write berpengaruh positif dan signifikan terhadap
The Effect Of The TPS (Think Pair Share) Learning Model Used By The Geogebra Application On The Ability Of Understanding Mathematical Concepts Of Grade X Munthe, Arianto; Tambunan, Lois Oinike; Sinaga, Christa Voni Roulina
PIJAR: Jurnal Pendidikan dan Pengajaran Vol. 3 No. 2 (2025): April
Publisher : CV Putra Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58540/pijar.v3i2.1294

Abstract

This study aims to determine the effect of the TPS (Think Pair Share) learning model assisted by the Geogebra application on the mathematical concept understanding ability of class X students of SMK Negeri 1 Siantar. The sampling technique used in this study is Probability Sampling. In this study, the type of experimental research used is Probability Sampling with a type of research design, namely One Shot Case Sturdy. In this type of design, the researcher will use a class unit where the researcher will provide a solution (treatment) to students for several periods. Based on the results of data analysis and discussion, it can be concluded that there is a positive and significant influence of the TPS (Think Pair Share) learning model assisted by the Geogebra application on the ability to understand mathematical concepts of class X students of SMK Negeri 1 Siantar. This influence can be seen from the regression equation Y = 63,570 + 1.271 with a regression coefficient of 1.271. Through the t-test, it can be seen that t_count>t_table = (11,361>6,742) indicates that significance and by using the coefficient of determination can be seen the magnitude of the influence is 82.2%.
The Effect Of The Thinking Aloud Pair Problem Solving (TAPPS) Method of Ability Mathematical Communication Naibaho, Anemsinta; Sinaga, Christa Voni Roulina; Tambunan, Lois Oinike
Jurnal Ilmu Sosial dan Humaniora Vol. 4 No. 1 (2026): Januari
Publisher : CV Putra Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58540/isihumor.v4i1.1398

Abstract

This study aims to determine the Effect of Thinking Aloud Pair Problem Solving (Tapps) Method on Mathematical Communication Skills of Students of HKBP Private Vocational School Pematangsiantar. The type of research used by the researcher is experimental research. Experimental research is a research to determine whether there is an effect of something imposed on the subject of investigation. This research will be conducted using a single case study design (one-shot case study), where one group of experimental classes becomes the research subject. In the experimental group, a treatment is applied in the form of the application of the Thinking Aloud Pair Problem Solving (TAPPS) Learning Method which is considered successful. After the treatment, a post-test evaluation is carried out and from the results of the measurement, conclusions will be drawn. Based on the results of data analysis and discussion, it can be concluded that there is a significant influence of the Thinking Aloud Pair Problem Solving (TAPPS) Method on students' mathematical communication skills in Statistics material at HKBP Private Vocational School Pematangsiantar. This influence can be seen from the regression equation = -56.532 + 1.088 with a regression coefficient of 1.088 and a determination coefficient of 91% which shows that there is a very strong relationship between the Thinking Aloud Pair Problem Solving (TAPPS) Method and students' mathematical communication skills
The Effect Of The Discovery Learning Model On Students' Understanding Of Mathematical Concepts In Grade VIII Rumapea, Mutiara Sani; Sinaga, Christa Voni Roulina; Simanungkalit, Rick Hunter
Jurnal Pendidikan, Sains Sosial, dan Agama Vol. 6 No. 2 (2020): Jurnal pendidikan, sains sosial, dan agama
Publisher : STABN RADEN WIJAYA WONOGIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53565/pssa.v6i2.2597

Abstract

This study aims to determine the effect of the Discovery Learning model on students’ mathematical conceptual understanding in grade VIII of SMP Negeri 4 Pematangsiantar. The sample of this study was class VIII-10 consisting of 30 students. The research instruments were a questionnaire and a test. The questionnaire was used to identify the implementation of the Discovery Learning model, while the test was used to measure students’ conceptual understanding of linear equations. The instruments consisted of 20 questionnaire items and 4 test items, which had been validated and declared reliable. The research design employed a one-shot case study. Data analysis included prerequisite tests (normality and linearity) and simple linear regression analysis. The results of the study showed the regression equation Y=6.571+0.411XY = 6.571 + 0.411X. The significance test revealed that tcount>ttablet_{count} > t_{table} (8.194 > 2.048) and sig. value < 0.05 (0.000 < 0.05), indicating a significant effect of the Discovery Learning model on students’ mathematical conceptual understanding. The contribution of variable X (Discovery Learning model) to variable Y (mathematical conceptual understanding) was 70.6%..
Akselerasi Pemulihan Ekonomi Masyarakat Pasca Bencana Melalui Inovasi Pakan Ikan Mandiri Berbasis Buah Campnosperma auriculatum Desa Lancat Sianipar, Herna Febrianty; Sianturi, Tambos; Siahaan, Theresia Monika; Sijabat, Apriani; Sinaga, Christa Voni Roulina; Simanjuntak, Bernard
Abdimas Mandalika Vol 5, No 3 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/am.v5i3.38527

Abstract

Abstract: The natural disaster in Lancat Village caused significant damage to fisheries infrastructure and crippled the economy of local fish farmers due to the high cost of commercial feed. This community service program aims to accelerate economic recovery through innovative, independent fish feed based on the use of Campnosperma auriculatum (Terentang) fruit as an alternative raw material. The implementation method consisted of four main stages: outreach and data collection on damaged facilities, technical training on feed formulation, intensive production assistance, and economic performance evaluation. The results of the activity showed an increase in the community's technical skills in feed nutritional formulation from 10% to 80%. The use of this innovative feed significantly reduced variable production costs by 40% and increased farmer profit margins per harvest cycle. The success of this program not only restored post-disaster production capacity but also created a sustainable, circular economic model based on local resources. The transformation of the community from feed consumers to independent producers is a key factor in strengthening the economic resilience of Lancat Village against market fluctuations and future disaster risks.Abstrak: Bencana alam di Desa Lancat telah menyebabkan kerusakan infrastruktur perikanan yang signifikan dan melumpuhkan ekonomi pembudidaya ikan lokal akibat tingginya biaya pakan komersial. Kegiatan pengabdian masyarakat ini bertujuan untuk mengakselerasi pemulihan ekonomi melalui inovasi pakan ikan mandiri berbasis pemanfaatan buah Campnosperma auriculatum (Terentang) sebagai bahan baku alternatif. Metode pelaksanaan dilakukan melalui empat tahapan utama: sosialisasi dan pendataan kerusakan sarana, pelatihan teknis formulasi pakan, pendampingan intensif produksi, serta evaluasi performa ekonomi. Hasil kegiatan menunjukkan peningkatan keterampilan teknis masyarakat dalam formulasi nutrisi pakan dari 10% menjadi 80%. Penggunaan pakan inovasi ini secara nyata mampu menekan biaya variabel produksi sebesar 40% dan meningkatkan margin keuntungan pembudidaya per siklus panen. Keberhasilan program ini tidak hanya memulihkan kapasitas produksi pasca bencana, tetapi juga menciptakan model ekonomi sirkular berbasis sumber daya lokal yang berkelanjutan. Transformasi masyarakat dari konsumen pakan menjadi produsen mandiri menjadi kunci utama dalam memperkuat ketahanan ekonomi Desa Lancat terhadap fluktuasi pasar dan risiko bencana di masa depan.
Implementation of an Ethnomathematics-Based Project-Based Learning (PjBL) Model to Improve Students’ Numeracy Literacy in the Society 5.0 Era Christa Voni Roulina Sinaga; Apriani Sijabat; Nelly Suka Sihite; Novia Carla Purba; Herna Febrianty Sianipar
Journal of Advanced Sciences and Mathematics Education Vol. 6 No. 2 (2026): Journal of Advanced Sciences and Mathematics Education
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jasme.v6i2.1132

Abstract

  ABSTRACT Background of Study: The development of digital technology in the Society 5.0 era requires university students to possess strong numeracy literacy skills to analyze data, solve contextual problems, and make informed decisions. However, many students still experience difficulties in applying mathematical concepts in real-life contexts. Integrating cultural values through ethnomathematics in learning is considered a potential approach to make mathematics more meaningful and contextual for students. Aims and Scope of the Paper: This study aims to examine the implementation of an ethnomathematics-based Project-Based Learning (PjBL) model to improve university students’ numeracy literacy in the Society 5.0 era. The scope of this research focuses on the integration of local cultural elements into project-based mathematical learning activities. Methods: This study employed a quasi-experimental design using a pretest–posttest approach. The participants were undergraduate students enrolled in a mathematics-related course. Data were collected through numeracy literacy tests, observation sheets, and project assessments. The learning activities required students to develop projects that integrate mathematical concepts with local cultural contexts. Data were analyzed using descriptive and inferential statistical methods. Results: The results indicated that the implementation of the ethnomathematics-based PjBL model significantly improved students’ numeracy literacy. Students demonstrated better abilities in interpreting numerical data, solving contextual mathematical problems, and communicating quantitative reasoning. In addition, the integration of cultural contexts increased students’ engagement and learning motivation. Conclusion: The ethnomathematics-based PjBL model is effective in improving university students’ numeracy literacy and can serve as an innovative learning approach to support the development of 21st-century skills in the Society 5.0 era.
Co-Authors Agnes Tresia Dolok Saribu Amalia Putri, Tasya Anemsinta Naibaho Angely Mutiara Butar Butar Anita Debora Br Simangunsong Apriani Sijabat Ardiansyah Sibagariang Asmin Asmin Ayu Majulestari Tampubolon Bornok Sinaga br. Sitorus, Antonia Lioncun Canni Loren Sianturi Clara Theresia Lumbantoruan Damanik, Syafti Alfhiza Diana Falentina Simamora Donna Manurung Dwi Anita Simatupang Elsha Riyani Saragih Ferri Ojak Immanuel Pardede Fibra Ananta Friska Erna Sari Simajuntak Friswan Manurung Gayus Simarmata Grace Amelia Gultom Grace viani enjelia simarmata Gultom, Moraita Handoco, Ewin Harefa, Asrianita Helena Zepania Samosir Herlina Sitanggang Herna Febrianty Sianipar Herna Febrianty Sianipar Herna Febrianty Sianipar Herna Febrianty Sianipar Herna Febrianty Sianipar Herna Febrianty Sianipar Herna Febrianty Sianipar Icca Fransiska Sinaga Jatenra Holan Jaya Hutahaean Jaya Tata Hardinata Jernita Sihotang Jesika Aprilian Purba Siboro Juli Antasari Br Sinaga Kirana, Dwi Cici Ledy Suryani Siahaan Lestari Widya Veronica Hasibuan Lumbangaol, Sudirman Togu Parluhutan Marbun, Valentina Margaretha Marbun, Yanti Maria Marbun, Yanty Maria Rosmauli Melda Veby Ristella Munthe Mungkap Mangapul Siahaan Munthe, Arianto Mutiara Sani Rumapea Naibaho, Anemsinta Napitupulu, Oselly Tessalonika Nelly Suka Sihite Novia Carla Purba Osco Parmonangan Siajabat Pandianga, Mesriana Pandiangan, Diva Indah Maria Pane, Eva Pratiwi Pardede, Ersa Manora Pardede, Ferry Ojak Immanuel Partohap S. R Sihombing, Partohap S. R Partohap Sihombing Paska Apriyanti Munthe Purba, Enzeria Neva Purba, Rudiarman Purba, Yoel Octobe Putri Julfriyana Purba Putri Tanjung Rektor Sianturi, Rektor Ria Anjelina Siahaan Rick Hunter Simanungkalit, Rick Hunter Royanta Trimei Simatupang Rumapea, Mutiara Sani Sanggam Siahaan Saragih, Elice Twenty Saragih, Elsha Riyani Saragih, Reagan Surbakti Sarah Gita Agustien Purba Sauduran, Golda Novatrasio Siahaan, Tara Agustian Siahaan, Theresia Monika Sianipar, Julia SIANTURI, TAMBOS AUGUST Sibagariang, Susy Alestriani Siboro, Grace Angel Florense Purba Sidabutar, Ropinus Sihombing, Levi Pandapotan Sihombing, Sotarduga Silitonga, Monica Anjelica Silvani Oktavia Silaban Simamora, Benjamin Albert Simamora, Rianita Simangunsong, Sarah Fergy Simanjuntak, Bernard Simarmata, Radode Kristanto Sinabang, Febrianto Samuel Sinaga , Ruth Novitri Sinaga, Asima Rohana Sinaga, Mardame Pangihutan Sinaga, Marlina Sirait, Debora Sitanggang, Fortina Julianta Sitepu, Widya Vani Siti Imroatul Maslikah Sitohang, Setia T. Sitompul, Lastri Yetti Situmorang, Cristyani Situmorang, Sisca Theresia Sonia Dhelafani Tambunan, Gayus Tambunan, Lois Tambunan, Nur Beda Ria Tampubolon, Febri Crownika Tarigan, Tanty Novelia Theresia Siahaan Thesalonika, Emelda Welfha Situngkir Welmar Olfan Barat, Welmar Olfan Widia Eka Deatri Hutapea Winnie Wie Yessi Kristiani Lumbantobing Yeyen Julfriyana Sitorus