Jurnal Pendidikan Matematika : Judika Education
type: channel
description: Jurnal Pendidikan Matematika:Judika Education is published by research institute of mathematics, computer, nursering, education and economics (IPM2KPE) as the information and communication media for practitioners, researchers and academics who engaged, put interest and fully attention on the development of mathematics education. Jurnal Pendidikan Matematika:Judika Education publishes articles both in online/OJS (e-ISSN 2614-6088) and printed (p-ISSN 2620-732X)
publisher: Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)
language: en
publication name: Jurnal Pendidikan Matematika : Judika Education
issn: 2620-732X
items: Dampak Pemahaman Konsep Perkalian Bilangan Bulat pada Peserta Didik
items: Penggunaan LKPD Berbasis Pendekatan Matematika Realistik untuk Meningkatkan Kemampuan Penalaran Matematis Siswa SMP
items: Mengelola Risiko dan Ketidakpastian dalam Capital Budgeting
items: Peningkatan Prestasi Belajar Matematika Siswa SD Melalui Model Pembelajaran Treasure Hunt
items: Analisis Perkembangan Kognitif Teori Jean Piaget terhadap Anak Usia 4-12 Tahun pada Pembelajaran Matematika
items: Analisis Berpikir Kritis Siswa SMP dalam Memecahkan Masalah Numerasi Ditinjau dari Persepsi Diri terhadap Kompetensi Matematika
items: Analisis Kemampuan Berpikir Kritis Matematis dan Motivasi Belajar Siswa pada Materi Barisan dan Deret Aritmatika
items: Analisis Self-Efficacy Mahasiswa Universitas Nurtanio pada Mata Kuliah Kalkulus Integral
items: Learning Obstacle Sebagai Indikator Krisis Konseptual dalam Pembelajaran Bangun Ruang Sisi Datar
items: Kemampuan Literasi Numerasi Matematika Siswa pada Materi Statistika
items: Pengaruh Puzzle Numerasi terhadap Kemampuan Numerasi Siswa Kelas V di Sekolah Dasar
items: Analisis Penelitian Ethnomathematics pada Siswa SMA di Dunia Pendidikan Internasional
items: Pengaruh Model Learning Cycle 5e terhadap Kemampuan Komunikasi Matematis Siswa
items: Model Regresi Linier Berganda untuk Peramalan Hasil Panen Kelapa Sawit
items: Analisis Kemampuan Literasi Numerasi Siswa Kelas XII dalam Menyelesaikan Soal Seleksi Nasional Berdasarkan Tes (SNBT) di SMA Swasta Cerdas Murni
items: Implementasi Model Pembelajaran Contextual Teaching and Learning (CTL) Berbasis Etnomatematika terhadap Kemampuan Literasi Numerasi Siswa
items: Implementasi Model Problem Based Learning Berbasis Etnomatematika dalam Meningkatkan Kemampuan Berpikir Reflektif Matematis Siswa
items: Model Role Playing Sebagai Model Efektif dalam Membangun Kepercayaan Diri dan Komunikasi Matematis Siswa SMP
items: Pengembangan Media Animasi dengan Model Contextual Teaching and Learning (CTL) untuk Meningkatkan Minat Belajar Trigonometri Siswa Kelas X
items: Desain Lintasan Pembelajaran untuk Meningkatkan Estimasi dalam Kemampuan Number Sense Siswa Sekolah Dasar
items: Mengoptimalkan Kemampuan Berpikir Kritis Matematis Siswa Menggunakan PJBL dengan Gallery Walk Technique Berbasis Tipe Kepribadian
items: Variabilitas Sea Surface Temperature (SST) di Wilayah Indonesia Akibat Pengaruh Musim
items: Perbandingan Metode Multi Analysis Surface Wave dan Metode HVSR dengan Mengidentifikasi Karakteristik Bawah Permukaan Jaringan Monitoring Gempabumi Wilayah Jawa Tengah
items: Peran Pembelajaran Differensiasi dalam Meningkatkan Hasil Belajar Siswa pada Materi Bangun Ruang
items: Prediksi Fine Fuel Moisture Code Menggunakan Algoritma Random Forest untuk Sistem Peringatan Dini Kebakaran Hutan
items: Pengembangan Evaluasi Pembelajaran Ular Tangga Untuk Meningkatkan Hasil Belajar Siswa Materi Barisan dan Deret
items: Etnomatematika: Pengenalan Geometri Bangun Datar dan Bangun Ruang Melalui Bangunan Bersejarah Tjong A Fie
items: Validasi Model Numerik Spektrum Gelombang Menggunakan Data Wave Recorder Platform Minyak & Gas Lepas Pantai
items: Klasifikasi Jenis Tanah di Kota Bengkulu Berdasarkan Metode Horizontal To Vertical Spectra Ratio
items: Pengaruh Model Pembelajaran Think Talk Write (TTW) terhadap Kemampuan Pemahaman Konsep Matematis Siswa

Dampak Pemahaman Konsep Perkalian Bilangan Bulat pada Peserta Didik
type: item
description: This study aims to describe the level of conceptual understanding of integer multiplication among students at MTs Nida’ul Khairaat Pombewe and to analyze its impact on their ability to solve mathematical problems. The research employed a descriptive qualitative approach using diagnostic tests, semi-structured interviews, observations, and documentation as data collection techniques. A total of 31 students participated in a test measuring four indicators of conceptual understanding: classification, concept connection, algorithm, and representation. The results showed that 80% of students were in the low understanding category, 15% in the moderate category, and only 5% in the high category. In-depth analysis of three representative subjects revealed that students in the high category demonstrated strong relational understanding, those in the moderate category showed partial understanding, while students in the low category experienced fundamental misconceptions, particularly regarding sign rules and mathematical representations. The findings also indicated that representation—especially visual and contextual—was the weakest aspect for most students. Interviews confirmed that the teacher’s teaching methods, particularly the pace of explanation and lack of repetition, significantly influenced conceptual understanding. This study concludes that strengthening conceptual understanding should be carried out through more concrete, gradual, and representation-based learning to prevent misconceptions and improve students’ ability to solve integer multiplication problems. Keywords: Conceptual Understanding; Integers; Multiplication; Misconception; Mathematical Representation; Mathematics Learning
subject: Articles
  topic: section
subject: conceptual understanding; integers; multiplication; misconception; mathematical representation; pembelajaran matematika
  topic: keywords
creator: Mohamad Ikbal
creator: Nursupiamin Nursupiamin
creator: Yulia Yulia
rights: Copyright (c) 2025 Mohamad Ikbal, Nursupiamin Nursupiamin, Yulia Yulia http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 946
ending page: 961
doi: 10.31539/7m3hms43

Penggunaan LKPD Berbasis Pendekatan Matematika Realistik untuk Meningkatkan Kemampuan Penalaran Matematis Siswa SMP
type: item
description: This study aims to examine the use of Student Worksheets (LKPD) designed based on the Realistic Mathematics Education (PMR) approach in improving the mathematical reasoning skills of junior high school students. The background of this study is the low achievement of Indonesian students in various national and international assessments, such as PISA. The method used is a quasi-experimental with a One Group Pretest-Posttest design. The research sample was taken purposively from grade VIII students at SMP Negeri 3 Langsa in the 2025/2026 academic year. The instrument used was an essay test developed in accordance with the mathematical reasoning indicators from NCTM and has gone through a validation process. Data analysis was carried out descriptively and inferentially using the Paired Sample t-Test. The results showed a significant increase in scores between the pretest and posttest, where the average score increased from 62 to 75 with a significance value of p = 0.000 (<0.05). These findings prove that LKPD based on the RME approach is effective in improving students' mathematical reasoning skills. Therefore, a contextual learning approach such as PMR is important to apply in teaching mathematics at the junior high school level. Keywords: LKPD, Mathematical Reasoning PMR, Pretest-Posttes
subject: Articles
  topic: section
subject: LKPD, PMR, Penalaran Matematis, Pretest-Posttest
  topic: keywords
creator: Siti Nur Adila Nazwani
creator: Sabaruddin Sabaruddin
creator: Raudatul Husna
creator: Fenny Anggreni
rights: Copyright (c) 2025 Siti Nur Adila Nazwani, Fenny Anggreni, Raudatul Husna http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 936
ending page: 945
doi: 10.31539/yjedzf45

Mengelola Risiko dan Ketidakpastian dalam Capital Budgeting
type: item
description: Capital budgeting is a crucial aspect of long-term investment decision-making, particularly under conditions of risk and uncertainty. The literature shows that traditional methods such as Net Present Value (NPV) and Internal Rate of Return (IRR) are still dominant, although they are often inadequate to address the dynamics of the global economy, policy, and markets. Therefore, capital budgeting theory and practice are evolving by adopting advanced techniques, including sensitivity analysis, Monte Carlo simulations, decision trees, and real options, which offer flexibility in the face of uncertainty. This study employed a Systematic Literature Review (SLR) method based on the PRISMA 2020 guidelines, with the primary source being the Scopus database. The selection process yielded 2,709 initial articles, which, after filtering for publication year (2020–2025), language, open access, and keyword relevance, were narrowed down to 90 eligible articles for further analysis. Bibliometric data was then mapped using the VOS viewer to visualize the interconnections between topics. The study's results show an increasing publication trend post-COVID-19 pandemic, with research dominated by energy, infrastructure, and climate policy. The analysis also uncovered research gaps, particularly in the digital sector, MSMEs, and developing country contexts. In conclusion, this study emphasizes the need for a hybrid quantitative-behavioral approach to capital budgeting and opens up research opportunities related to the integration of sustainability aspects into investment decisions. Keywords: capital budgeting, risk, uncertainty, bibliometrics
subject: Articles
  topic: section
subject: capital budgeting, risiko, ketidakpastian, systematic literature review, bibliometrik
  topic: keywords
creator: Ade Sri Mulyani
creator: Muhammad Yusuf
creator: Yunike Berry
creator: Etyca Rizky Yanti
creator: eilanta Rantina
creator: Tri Lestari
rights: Copyright (c) 2025 Ade Sri Mulyani, Muhammad Yusuf, Yunike Berry, Etyca Rizky Yanti, eilanta Rantina, Tri Lestari http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 890
ending page: 907
doi: 10.31539/hcaggv98

Peningkatan Prestasi Belajar Matematika Siswa SD Melalui Model Pembelajaran Treasure Hunt
type: item
description: This classroom action research aimed to improve third-grade students’ mathematics achievement on decimal numbers through a game-based Treasure Hunt learning model. The study employed the Kemmis and McTaggart classroom action research design carried out in two cycles, each consisting of planning, acting, observing, and reflecting stages, involving 28 third-grade students of SD Islam Sabilillah Malang. Data were collected using mathematics achievement tests, observation sheets for students’ activities and instructional implementation, and a learning motivation questionnaire. The results showed that the mean score increased from 61.8 at the pre-test to 72.4 in the first-cycle post-test and 81.6 in the second-cycle post-test, while mastery learning improved from 35.7% to 89.3%, with a normalized gain of 0.52 (medium category). Students’ motivation reached an average score of 4.1 (high category), and instructional implementation achieved 94.6% (very good category). In conclusion, the Treasure Hunt learning model is effective in enhancing students’ mathematics achievement, motivation, and engagement in elementary mathematics learning. Keywords: Game-Based Learning, Mathematics Achievement, Motivation, Treasure Hunt.
subject: Articles
  topic: section
subject: Instruksi terintegrasi-permainan
  topic: keywords
subject: Pengembangan kompetensi numerik
  topic: keywords
subject: Metodologi kolaboratif-sebaya
  topic: keywords
subject: Inkuiri pedagogis siklikal
  topic: keywords
subject: Pendidikan tingkat-primer
  topic: keywords
creator: Isbadar Nursit
creator: Ria Widiyanti
rights: Copyright (c) 2025 Isbadar Nursit, Ria http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-25
publication date: 2025-12-25
starting page: 813
ending page: 828
doi: 10.31539/tc00at67

Analisis Perkembangan Kognitif Teori Jean Piaget terhadap Anak Usia 4-12 Tahun pada Pembelajaran Matematika
type: item
description: This study aims to identify challenges in understanding abstract concepts caused by teaching methods that are not aligned with cognitive stages, such as imposing symbols without real objects, while integrating theory with global and national curricula, particularly in Indonesia. This research uses secondary literature analysis from reliable sources to uncover qualitative patterns of difficulties and practical recommendations, including practical applications, critiques of the universal stage sequence, and the integration of alternative approaches for inclusive learning. It also suggests educators adapt active strategies such as exploration and play to increase motivation, understanding, and mitigate problems related to individual variation and environmental factors. The findings yielded 10 research journal articles discussing the cognitive development of Jean Piaget's theory in children aged 4-12 years in mathematics learning. In conclusion, this theory plays a crucial role in improving the effectiveness of learning for children aged 7-12 years, particularly at the concrete operational stage, where students are able to think logically about real objects. Different cognitive development at each age affects children's ability to understand mathematical concepts such as basic operations, conservation, and problem-solving. Therefore, learning needs to be adapted through active, student-centered methods, such as discovery, cooperation, and inquiry. Keywords: Mathematics, Jean Piaget's Theory.
subject: Articles
  topic: section
subject: Teori Jean Piaget, Matematika.
  topic: keywords
creator: Kasmawati Kasmawati
creator: Suradi Tahmir
creator: Danial Nasruddin
rights: Copyright (c) 2025 Kasmawati Kasmawati, Suradi Tahmir, Danial Nasruddin http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 972
ending page: 982
doi: 10.31539/pj3t9p67

Analisis Berpikir Kritis Siswa SMP dalam Memecahkan Masalah Numerasi Ditinjau dari Persepsi Diri terhadap Kompetensi Matematika
type: item
description: This study aims to analyze students' critical thinking skills in the context of numeracy in terms of their self-perception of mathematical competence. A qualitative approach was used with a case study design, involving four eighth-grade students at a junior high school in Bondowoso who were selected based on the categories of positive, negative, declining, and improving self-perception. The research instruments consisted of a self-perception questionnaire and numeracy questions analyzed using six indicators of critical thinking, namely interpretation, analysis, inference, evaluation, explanation, and self-regulation. Data were obtained through test results and interview transcripts. The results showed that students with positive and increasing self-perceptions were able to meet all six critical thinking indicators, while students with negative self-perceptions met two critical thinking indicators and students with declining self-perceptions met four critical thinking indicators. These findings indicate that positive self-perception tends to contribute to better critical thinking skills, but it was found that students with initially positive self-perception did not necessarily have high critical thinking skills. Thus, the dynamics of self-perception are an important factor that needs to be considered in the development of numeracy-based mathematics learning. Keywords: Critical Thinking, Self-Perception, Numeracy
subject: Articles
  topic: section
subject: Berpikir kritis
  topic: keywords
subject: Persepsi diri
  topic: keywords
subject: Numerasi
  topic: keywords
creator: Riandita Kusumawati Indriansyah
creator: Hana Puspita Eka Firdaus
creator: Chusnul Khotimah Galatea
rights: Copyright (c) 2026 Riandita Kusumawati Indriansyah, Hana Puspita Eka Firdaus, Chusnul Khotimah Galatea http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 918
ending page: 934
doi: 10.31539/q4hkjk02

Analisis Kemampuan Berpikir Kritis Matematis dan Motivasi Belajar Siswa pada Materi Barisan dan Deret Aritmatika
type: item
description: This study aims to analyze students' mathematical critical thinking ability and learning motivation on the topic of Arithmetic Sequences and Series among grade X students at SMA Negeri Rupit. The research employed a descriptive qualitative method supported by quantitative data. The participants were 36 students consisting of 16 males and 20 females. Data were collected through a mathematical critical thinking test, learning motivation questionnaire, semi-structured interviews, and classroom observations. The results revealed that students' mathematical critical thinking ability was in the moderate category with an average score of 60.18%. Learning motivation was categorized as low with an average of 55.40%. The conclusion is there was a positive relationship between critical thinking ability and learning motivation. It is recommended that mathematics learning should implement Problem-Based Learning (PBL) and Contextual Teaching and Learning (CTL) models combined with STEM-based media to simultaneously enhance students' critical thinking skills and learning motivation. Keywords: Arithmetic Sequences and Series, Learning Motivation, Mathematical Critical Thinking Ability
subject: Articles
  topic: section
subject: kemampuan berpikir kritis matematis, motivasi belajar, barisan dan deret aritmatika
  topic: keywords
creator: Netti Handayani
creator: Dodik Mulyono
creator: Leo Charli
rights: Copyright (c) 2025 Netti Handayani, Dodik Mulyono, Leo Charli http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 881
ending page: 889
doi: 10.31539/x2hq4439

Analisis Self-Efficacy Mahasiswa Universitas Nurtanio pada Mata Kuliah Kalkulus Integral
type: item
description: This study aims to analyze student self-efficacy where the research subjects are third semester students of Nurtanio University Bandung in the Integral Calculus course. This study uses a descriptive quantitative method where the sample is taken using a purposive sampling technique. The results of the study show that in general the majority of students in the Integral Calculus course have self-efficacy in the medium category, which is 53.33% of the total number of students with the conclusion that most of the self-efficacy in the magnitude and generality dimensions shows a medium category of 70% and 56.67% of the total number of students, while most of the students' self-efficacy in the strength dimension shows a high category of 40% of the total number of students. Keywords : Self-Efficacy; Integral Calculus; Student
subject: Articles
  topic: section
subject: Keyakinan Diri; Mahasiswa; Kalkulus Integral
  topic: keywords
creator: Herlina Simangunsong
creator: Rifka Agustianti
rights: Copyright (c) 2025 Herlina Simangunsong, Rifka Agustianti http://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-31
publication date: 2025-10-31
starting page: 731
ending page: 740
doi: 10.31539/78n0th38

Learning Obstacle Sebagai Indikator Krisis Konseptual dalam Pembelajaran Bangun Ruang Sisi Datar
type: item
description: This study aims to identify the Learning obstacles experienced by students in learning quadrilaterals and to analyze how these obstacles indicate the emergence of a conceptual crisis. The method used is a descriptive qualitative approach involving junior high school students as research subjects. Data were collected through diagnostic tests, interviews, and classroom observations to explore students’ learning difficulties in greater depth. The findings show that students still encounter various types of Learning obstacles, including ontogenic, epistemological, and didactical obstacles. These obstacles are evident in students’ inability to understand basic concepts, difficulties in connecting different representations of geometric figures, and the mismatch between teachers’ instructional strategies and students’ learning characteristics. These conditions indicate the presence of a conceptual crisis that may hinder students’ understanding of more complex mathematical concepts. In conclusion, this study emphasizes that the Learning obstacles identified are influenced not only by students’ initial abilities but also by instructional resources and the teaching approaches used. The findings contribute theoretically to the discussion of Learning obstacles in mathematics education and provide practical recommendations for teachers in designing geometry instruction that is more contextual, interactive, and conceptually oriented. Keywords: Conceptual Crisis, Geometry, Learning obstacle, Mathematics Education, Quadrilateral,
subject: Articles
  topic: section
subject: Learning Obstacle, Conceptual Crisis, Geometry, Quadrilateral, Mathematics Education
  topic: keywords
creator: Novela Wulandari
creator: Fitri Anisa Kusumastuti
creator: Muh. Khaedir Lutfi
rights: Copyright (c) 2025 Novela Wulandari, Fitri Anis Kusumastuti, Muh. Khaedir Lutfi http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-25
publication date: 2025-12-25
starting page: 829
ending page: 840
doi: 10.31539/vw3eg770

Kemampuan Literasi Numerasi Matematika Siswa pada Materi Statistika
type: item
description: This study aims to explore high school students’ numeracy literacy skills in understanding statistical material through a descriptive qualitative approach. The research involved 25 tenth-grade students from SMA Negeri 2 Kejuruan Muda, selected purposively based on varying levels of numeracy proficiency. Data were collected using context-based diagnostic tests and semi-structured interviews, and analyzed through the stages of data reduction, presentation, and conclusion drawing. The findings indicate that only a small portion of students were able to accurately interpret numerical information and relate it to real-life contexts. Students with moderate proficiency tended to rely on procedural routines without deeper conceptual understanding, while those with low proficiency exhibited misconceptions in interpreting symbols and contextual meaning. These results highlight the need for more contextual and interactive teaching strategies to help students develop meaningful and relevant understanding of statistical concepts. Keyword: Conceptual Understanding, Contextual Teaching Model, Mathematics, Numeracy Literacy, Statistics.
subject: Articles
  topic: section
subject: literasi numerasi, pembelajaran kontekstual, statistika
  topic: keywords
creator: Nurmayadani Nurmayadani
creator: Yenny Suzana
creator: M. Zaiyar
rights: Copyright (c) 2025 NURMAYADANI, Yenny Suzana, Fenny Anggreni, M. Zaiyar http://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-31
publication date: 2025-10-31
starting page: 741
ending page: 750
doi: 10.31539/rsg36k22

Pengaruh Puzzle Numerasi terhadap Kemampuan Numerasi Siswa Kelas V di Sekolah Dasar
type: item
description: This study aims to determine the effect of numeracy puzzles on the numeracy skills of 5th grade students at Sidosari Public Elementary School through pretest and posttest results. The research method used is quantitative research with a one-group pretest-posttest pre-experimental design to measure students' numeracy skills. The population used was 22 fifth grade students. The research instrument was AKM (Minimum Competency Assessment) questions in the Teaching Campus program which included pretest and posttest. Data were analyzed using descriptive analysis, normality tests, and statistical tests to determine whether the posttest scores increased significantly compared to the pretest scores. The statistical test used was a non-parametric test because the data was not normally distributed, so it used Wilcoxon Signed Rank. The results showed that the Wilcoxon Signed Rank test showed that there was a difference between the pretest and posttest of students after using numeracy puzzles with Sig. (2-tailed) of 0.000 <0.05. It can be interpreted that H₀ is rejected and H₁ is accepted, so there is an influence of numeracy puzzles on students' numeracy abilities in grade V of Sidosari State Elementary School. In conclusion, there is a significant influence in supporting the use of puzzle-based learning methods as a way to engage students and improve their numeracy abilities, as well as contribute to broader learning in developing critical thinking and problem-solving skills. Keywords: Numeracy Skills, Media, Numeracy Puzzle.
subject: Articles
  topic: section
subject: Kemampuan Numerasi, Media, Puzzle Numerasi.
  topic: keywords
creator: Dina Anggraini
creator: Titi Anjarini
creator: Nurhidayati Nurhidayati
rights: Copyright (c) 2024 Dina Anggraini, Titi Anjarini, Nurhidayati Nurhidayati http://creativecommons.org/licenses/by-nc/4.0
date: 2024-09-18
publication date: 2024-09-18
starting page: 706
ending page: 717
doi: 10.31539/ymw72z11

Analisis Penelitian Ethnomathematics pada Siswa SMA di Dunia Pendidikan Internasional
type: item
description: This This study aims to explore the application of ethnomathematics in mathematics learning at the Senior High School (SMA) level in the context of international education. The method used is a Systematic Literature Review (SLR) by following the PRISMA guidelines for 22 articles published in the period 2015–2025 from the Scopus, ERIC, DOAJ, and Google Scholar databases. The results of the study indicate that the application of ethnomathematics based on local culture, such as batik, wayang, and traditional games, can improve students' understanding of mathematical concepts, motivation, and engagement. The use of technology, such as e-modules based on local culture and the flipped classroom model, has proven effective in enriching the learning experience. The conclusion of this study confirms that ethnomathematics has the potential to strengthen cultural identity while improving the quality of mathematics learning, with recommendations for improving teacher training and developing culture-based teaching materials on an ongoing basis. Keyword: Ethnomathematics, Mathematics education, PRISMA, SLR, High school student
subject: Articles
  topic: section
subject: Ethnomathematics, Siswa SMA, PRISMA, SLR, Pembelajaran matematika
  topic: keywords
creator: Ana Fatwa Putri Kusuma
creator: Bambang Sri Anggoro
creator: Siska Andriani
rights: Copyright (c) 2025 Ana Fatwa Putri Kusuma, Bambang Sri Anggoro, Siska Andriani http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-01
publication date: 2025-12-01
starting page: 804
ending page: 812
doi: 10.31539/1hjyc772

Pengaruh Model Learning Cycle 5e terhadap Kemampuan Komunikasi Matematis Siswa
type: item
description: This study aims to test the effect of the learning cycle 5E model on students' mathematical communication skills. The method used in this study was a pretest-posttest control group design, with an instrument in the form of a description test designed to measure students' mathematical communication skills. The results showed that the median data gain in students' mathematical communication ability using the learning cycle 5E model was higher than the median data gain in students' mathematical communication ability using the conventional model. The conclusion from the above findings is that the learning cycle 5E model has an effect on students' mathematical communication ability. Keywords: Effect, Learning Cycle 5E, Mathematical Communication Ability
subject: Articles
  topic: section
creator: Maurizi Adhe Mayro
creator: Santy Setiawati
creator: Nurhanurawati Nurhanurawati
rights: Copyright (c) 2025 Maurizi Adhe Mayro, Santy Setiawati, Nurhanurawati Nurhanurawati http://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-30
publication date: 2025-10-30
starting page: 777
ending page: 784
doi: 10.31539/qebqfp02

Model Regresi Linier Berganda untuk Peramalan Hasil Panen Kelapa Sawit
type: item
description: This study aims to forecast oil palm production using a multiple linear regression model by considering the relationships among several independent variables: rainfall , number of productive trees , harvested area , labor , fertilizer use , and a seasonal variable . Using secondary data from the company’s Daily Work Logs (Lembar Kerja Harian/LKH), the study employs the Ordinary Least Squares (OLS) estimator to obtain the coefficient vector. The results show a coefficient of determination of 65%, indicating that 65% of the variation in production can be explained by the input variables. The findings indicate that rainfall has a negative coefficient (-0.34305) suggesting a non-linear and inconsistent relationship with production levels. Thus, the study concludes that internal plantation factors—such as the number of productive trees play a more dominant role in increasing yield, whereas higher rainfall tends to negatively affect production. Keywords: Palm Oil Production, Linear Regression, Forecasting, Agricultural Yield, Climatic Influence, Plantation Management.
subject: Articles
  topic: section
subject: Produksi Minyak Kelapa Sawit; Regresi Linier; Peramalan; Hasil Pertanian; Pengaruh Iklim; Manajemen Perkebunan
  topic: keywords
creator: Ade Yuri F Damanik
creator: Armansyah Armansyah
rights: Copyright (c) 2025 Ade Yuri F Damanik, Armansyah Armansyah http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-31
publication date: 2025-08-31
starting page: 668
ending page: 677
doi: 10.31539/38c7q867

Analisis Kemampuan Literasi Numerasi Siswa Kelas XII dalam Menyelesaikan Soal Seleksi Nasional Berdasarkan Tes (SNBT) di SMA Swasta Cerdas Murni
type: item
description: ABSTRACT. This study aims to reveal deeper students’ numeracy literacy skills in solving the National Selection Based on Tests (SNBT) questions. This research was conducted at SMAS Cerdas Murni in the even semester of the 2024/2025 academic year. The research subjects consisted of 25 students of class XII MIPA-3. The research uses qualitative-methods with a descriptive approach. The research instruments used were SNBT test questions and interviews. The results showed that the numeracy literacy skills of class XII MIPA-3 students varied across each question. In question number 1, students' skills were classified as very low, as they still struggled to simplify complex problems despite understanding basic mathematical concepts. For question number 2, students demonstrated good skills, especially in applying formulas related to sequences and series and in drawing conclusions from implicit information. Question number 3 was rated as excellent, as students were able to process data from tables accurately and correctly apply probability concepts. Question number 4 fell into the fair category, as students could read graphs and perform calculations, but their ability to identify patterns or anomalies was still limited. Lastly, in question number 5, students showed good results with adequate skills in interpreting visual data and drawing conclusions from graphs. Overall, students' numeracy literacy skills were categorized as fair in solving SNBT (National Selection Based on Test) questions. Keywords: Numeracy Literacy, Ability, SNBT Questions.
subject: Articles
  topic: section
subject: Literasi Numerasi, Kemampuan, Soal SNBT.
  topic: keywords
creator: Atika Rahmah
creator: Asrul Asrul
rights: Copyright (c) 2025 Atika Rahmah, Asrul Asrul http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-21
publication date: 2025-08-21
starting page: 637
ending page: 647
doi: 10.31539/mzc5yt32

Implementasi Model Pembelajaran Contextual Teaching and Learning (CTL) Berbasis Etnomatematika terhadap Kemampuan Literasi Numerasi Siswa
type: item
description: This study aims to examine the effect of implementing the Contextual Teaching and Learning (CTL) model combined with an ethnomathematics approach on the numeracy literacy skills of eighth-grade junior high school students. The method used was a quantitative approach with a quasi-experimental design of the posttest-only nonequivalent control group type, involving two purposively selected classes, in which the experimental class received CTL-based learning integrated with ethnomathematics, while the control class received conventional instruction. The results showed that the average post-test score of the experimental class (18.19) was higher than that of the control class (6.34), with a significance value of < 0.001, indicating a significant difference between the two groups. In conclusion, the CTL model based on ethnomathematics is effective in improving students’ numeracy literacy skills through contextual learning integrated with local cultural elements. Keywords: CTL, Ethnomathematics, Numeracy Literacy
subject: Articles
  topic: section
subject: CTL, etnomatematika, literasi numerasi
  topic: keywords
creator: Saprina Maulida
creator: Lisa Dwi Afri
rights: Copyright (c) 2025 Saprina Maulida, Lisa Dwi Afri http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-17
publication date: 2025-08-17
starting page: 626
ending page: 636
doi: 10.31539/apdh6c08

Implementasi Model Problem Based Learning Berbasis Etnomatematika dalam Meningkatkan Kemampuan Berpikir Reflektif Matematis Siswa
type: item
description: This study aims to examine the differences in improvement between students who participated in ethnomathematics-based PBL learning and those who received conventional learning. This study was motivated by the lack of students' ability to think reflectively in mathematics. The method used was a quantitative method with a quasi-experimental design. The sample consisted of 30 students in the experimental class and 30 students in the control class, selected through purposive sampling. The results showed that the analysis using an independent samples t-test with IBM SPSS version 23 yielded a p-value (2-tailed) , meaning that H₀ was rejected while Hₐ was accepted. These results indicate a significant difference in improving students' mathematical reflective thinking skills. In conclusion, the ethnomathematics-based PBL model has been proven to have a greater impact than conventional learning, so that the integration of culture in learning can be considered an effective method for achieving this goal. Keywords: Mathematical Reflective Thinking, Ethnomathematics, Problem-Based Learning Model
subject: Articles
  topic: section
subject: Berpikir Reflektif Matematis, Etnomatematika, Model Problem Based Learning
  topic: keywords
creator: Marwah Mahfuzah Harahap
creator: Lisa Dwi Afri
rights: Copyright (c) 2025 Marwah Mahfuzah Harahap, Lisa Dwi Afri http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-15
publication date: 2025-08-15
starting page: 581
ending page: 591
doi: 10.31539/r5f1g331

Model Role Playing Sebagai Model Efektif dalam Membangun Kepercayaan Diri dan Komunikasi Matematis Siswa SMP
type: item
description: This study aims to determine the effect of the Role Playing model on students' mathematical communication skills and self-confidence. The method used was a quasi-experimental design with a randomized pretest-posttest control group. The results showed a significant difference between the experimental and control classes. The average increase in mathematical communication skills in the experimental class was 74.48%, higher than the control class (54.46%). Student self-confidence also increased more in the experimental class (65.07%) than in the control class (23.69%). It can be concluded that the Role Playing model has a positive effect on improving students' mathematical communication skills and self-confidence. Keywords: Mathematical Communication Skills, Self-Confidence, Role Playing, Teacher-Centered
subject: Articles
  topic: section
subject: Mathematical Communication Skills, Self-Confidence, Role Playing, Teacher-Centered.
  topic: keywords
creator: Sazatul Asmal
creator: Rusi Ulfa Hasanah Hasanah
rights: Copyright (c) 2025 Sazatul Asmal, Rusi Ulfa Hasanah Hasanah http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-15
publication date: 2025-08-15
starting page: 570
ending page: 580
doi: 10.31539/wajnw982

Pengembangan Media Animasi dengan Model Contextual Teaching and Learning (CTL) untuk Meningkatkan Minat Belajar Trigonometri Siswa Kelas X
type: item
description: The purpose of this research is to create an animation media that uses the Contextual Teaching and Learning (CTL) model to increase students' interest in learning trigonometry. This research uses research and development methods with a 4D model. Animation materials were created using the Contextual Teaching and Learning (CTL) Model. Media experts got a validity rate of 93.13%, and material experts of 92.86% which were categorized as "Very Valid". The results showed that 95.83% were very practical from teachers and 90.76% were very practical from students. The results of the pre-test scores did not have complete students judging from the KKM scores at school, while the results of the post-test scores were obtained that there were 23 students who completed and 7 students who did not complete with a completion percentage of 76.67% with good criteria. From the results of the study, it was concluded that the development of animation media with the Contextual Teaching and Learning (CTL) Model succeeded in increasing interest in learning trigonometry in class X. Keywords: CTL, Development, Trigonometry, Animated Video.
subject: Articles
  topic: section
subject: Pengembangan, Video Animasi, CTL, Trigonometri.
  topic: keywords
creator: Kartika Dewi pane
creator: Nur Ainun Lubis
rights: Copyright (c) 2025 Kartika Dewi pane, Nur Ainun Lubis http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-09
publication date: 2025-08-09
starting page: 519
ending page: 529
doi: 10.31539/8w6v8935

Desain Lintasan Pembelajaran untuk Meningkatkan Estimasi dalam Kemampuan Number Sense Siswa Sekolah Dasar
type: item
description: This design research aims to develop a learning trajectory design within the Indonesian Realistic Mathematics Education (PMRI) framework to improve elementary school students' number sense, particularly in estimation skills. This research was conducted in three stages: preliminary, design experiment, and retrospective analysis. This study involved 25 elementary school students in Lubuklinggau. Data were collected through worksheets, classroom documentation (photos and videos), and student interviews, and analyzed qualitatively and descriptively. The learning trajectory emphasized estimation by rounding prices to the nearest thousand and ten thousand, using the context of Hypermart shopping. The retrospective analysis focused on instructional elements, including task types, number operations, contextual relevance, problem openness, number selection, question types, and classroom culture. The findings indicate that a real and familiar context significantly improves students' estimation skills and learning engagement. This study concludes that a context-based learning trajectory is effective in supporting students' number sense development. Keywords: Estimation, Learning Trajectory, Number Sense, Estimation, PMRI
subject: Articles
  topic: section
subject: lintasan pembelajaran, number sense, estimasi, PMRI
  topic: keywords
creator: Anna Fauziah
creator: Viktor Pandra
rights: Copyright (c) 2025 Anna Fauziah, Viktor Pandra http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-09
publication date: 2025-08-09
starting page: 508
ending page: 518
doi: 10.31539/nhww4k42

Mengoptimalkan Kemampuan Berpikir Kritis Matematis Siswa Menggunakan PJBL dengan Gallery Walk Technique Berbasis Tipe Kepribadian
type: item
description: This study aims to optimize students' mathematical critical thinking skills through the Project Based Learning (PjBL) model and the Gallery Walk technique, tailored to students' personality types based on the Thinking and Feeling dimensions of the Myers-Briggs Type Indicator (MBTI). The method used is qualitative with a case study approach on eighth-grade students at a junior high school in Bangka District, Bangka Belitung Islands Province. Data were collected through personality type questionnaires, observations, mathematical critical thinking tests, and interviews, then analyzed descriptively to evaluate the development of students' critical thinking abilities. The results indicate that the implementation of PjBL and Gallery Walk is effective in enhancing mathematical critical thinking skills, particularly in the aspects of interpretation, analysis, and solution evaluation. Students with the Thinking type excel in logical reasoning and structured analysis, while those with the Feeling type stand out in communication and group collaboration. The collaboration of these two personality types enriches the discussions and solutions produced. The study concludes that recognizing students' personality types and integrating project-based learning and active techniques like Gallery Walk are crucial to creating adaptive, effective, and meaningful mathematics learning. Keywords: Gallery Walk, Mathematical Critical Thinking Skills, MBTI, Myers-Briggs Type Indicator, Project Based Learning, Qualitative
subject: Articles
  topic: section
subject: Kemampuan Berpikir Kritis Matematis; Project Based Learning; Gallery Walk; Myers-Briggs Type Indicator; MBTI; Kualitatif,
  topic: keywords
creator: Rizki Dera Amanda
creator: Suhendra Suhendra
creator: Aan Hasanah
rights: Copyright (c) 2025 Rizki Dera Amanda, Suhendra Suhendra, Aan Hasanah http://creativecommons.org/licenses/by-nc/4.0
date: 2025-10-12
publication date: 2025-10-12
starting page: 718
ending page: 730
doi: 10.31539/dg3bcd84

Variabilitas Sea Surface Temperature (SST) di Wilayah Indonesia Akibat Pengaruh Musim
type: item
description: This study analyzes the distribution pattern of sea surface temperature (SST) in Indonesia throughout the year and examines its impact on marine ecosystems and other marine parameters. SST in Indonesia shows significant seasonal variation, influenced by the apparent motion of the sun and seasonal wind circulation patterns. High SST during the rainy season supports convection and rainfall activities, but has the potential to increase the risk of coral bleaching. Conversely, low SST during the dry season triggers an upwelling phenomenon that brings nutrients from the bottom layer of the sea to the surface, increasing primary productivity. In addition, changes in SST affect salinity, ocean currents, and ocean wave intensity, which have important implications for marine ecosystems and marine resource management. These findings provide in-depth insights that are relevant to support climate change mitigation and adaptation planning to global climate dynamics. Keywords: Sea Surface Temperature, Apparent Motion of the Sun, Marine Ecosystems, Seasonal Variability.
subject: Articles
  topic: section
creator: Antiq Dharlita Kusumaningdyah
creator: Djuniadi Djuniadi
creator: Venny Hearttiana
creator: Furqon AlFahmi
creator: Ngurah Made Darma
rights: Copyright (c) 2025 Antiq Dharlita Kusumaningdyah, Djuniadi, Venny Hearttiana, Furqon AlFahmi, Ngurah Made Darma http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 908
ending page: 917
doi: 10.31539/s9v32a60

Perbandingan Metode Multi Analysis Surface Wave dan Metode HVSR dengan Mengidentifikasi Karakteristik Bawah Permukaan Jaringan Monitoring Gempabumi Wilayah Jawa Tengah
type: item
description: A region’s geological medium provides distinct local features that affect the propagation of seismic waves. This study looked at subsurface conditions down to 30 meters in order to assess the potential for seismic wave amplification during earthquakes. This research aims to determine the subsurface characteristics using the shear wave (Vs) parameters obtained using the multichannel analysis of surface waves (MASW) method.Twenty-four vertical geophones with a natural frequency of 4.5 Hz were subjected to the MASW technique. Through shear wave analysis, site classification was conducted referring to the Indonesian National Standard (SNI) 1726:2019, enabling evaluation of potential amplification across various sites. Reference sensors were selected from locations across Central Java, including the MBJI (Banjarnegara), KWJI (Wonosobo), KBJN and GTJI (Temanggung), GBJI (Batang), NSM01 (Central Semarang), SMRI and SMRIB (Tembalang), and BOJI (Boyolali).The lowest Vs30 value (165.1 m/s) was recorded at site NSM01 (Pendrikan Kidul, Central Semarang), while the highest (1868 m/s) was recorded at MBJI (Majalengka, Banjarnegara). Most reference sites were classified as Site Class C (very dense soil and soft rock). However, NSM01 was categorized as Site Class E (Soft Soil), indicating a higher potential for ground motion amplification, while MBJI presented minimal amplification risk due to its hard rock base.The findings highlight the importance of subsurface characterization for seismic hazard mitigation. The variation in Vs30 across the study sites reflects the lithological differences that directly affect the ground response during seismic events. Therefore, MASW provides essential data for improving earthquake-resistant infrastructure planning in Central Java.
subject: Articles
  topic: section
subject: Amplification, MASW, sensor, shear wave , Vs30.
  topic: keywords
creator: Retno Yogi Widjayanti
creator: M. Aryono Adhi
creator: Sigit Pramono
creator: Aditya Setyo Rahman
creator: Moh.Iqbal Tawakal
creator: Adam Ardiansyah
rights: Copyright (c) 2025 Retno Yogi Widjayanti, M. Aryono Adhi, Sigit Pramono, Aditya Setyo Rahman, Moh.Iqbal Tawakal, Adam Ardiansyah http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-13
publication date: 2025-12-13
starting page: 853
ending page: 871
doi: 10.31539/2y7srw09

Peran Pembelajaran Differensiasi dalam Meningkatkan Hasil Belajar Siswa pada Materi Bangun Ruang
type: item
description: This study aims to improve student learning outcomes in mathematical solid geometry material through differentiated learning. The method used is quantitative with a Pre-experimental Design in the form of One Group Pretest-Posttest model. The sample consisted of 22 students from class VIII SMP Negeri 1 Susoh. Data were collected through pretest and posttest assessments. The data were analyzed using the Wilcoxon Test. The results of this study show a significant improvement in student learning outcomes in solid geometry material through differentiated learning, with the average pretest score is 25.06 and posttest score 74.45, where α = 0.001, which is less than 0.05. The conclusion suggest that differentiated learning can improve the learning outcomes of class VIII students at SMP Negeri 1 Susoh in solid geometry material. Keywords: Solid Geometry, Learning Outcome, Differentiated Learning.
subject: Articles
  topic: section
subject: Kata kunci: pembelajaran berdeferiansiasi, hasil belajar, bangun ruang.
  topic: keywords
creator: Nurul Hafiqah
creator: Lia Hamimi
rights: Copyright (c) 2025 Nurul Hafiqah, Lia Hamimi http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-15
publication date: 2025-08-15
starting page: 592
ending page: 602
doi: 10.31539/apza3e68

Prediksi Fine Fuel Moisture Code Menggunakan Algoritma Random Forest untuk Sistem Peringatan Dini Kebakaran Hutan
type: item
description: This study aims to predict the Fine Fuel Moisture Code (FFMC) as an indicator of the ignitability level of natural fuels using the Random Forest algorithm. FFMC is an essential component of fire danger rating systems, used to describe the dryness level of fine fuels; therefore, accurate prediction is crucial for forest and land fire mitigation efforts. The research utilizes meteorological variables—including maximum temperature, relative humidity, wind speed, and rainfall—as input parameters. The model implementation is carried out in Google Colab using the Python programming language, accompanied by hyperparameter tuning through GridSearchCV to obtain the most optimal model configuration.The results indicate that relative humidity and rainfall are the most influential meteorological features in predicting FFMC. The developed Random Forest model demonstrates excellent performance, as reflected by a Mean Squared Error of 8,875 and an R-squared value of 0,974, which signifies a very high predictive capability. These findings confirm that the machine-learning approach based on Random Forest is able to produce precise FFMC estimations, thereby giving the model strong potential for integration into early warning systems for forest and land fires. Such integration would support decision-making processes, enhance the effectiveness of mitigation strategies, and strengthen preparedness in managing fire-related risks. Keywords: Fine Fuel Moisture Code, Fire Danger Prediction, Meteorological Features, Machine Learning, Random Forest.
subject: Articles
  topic: section
creator: Sri Mulyaningsih
creator: Wahyu Hardyanto
creator: Alpon Sepriando
creator: Djuniadi Djuniadi
rights: Copyright (c) 2025 Sri Mulyaningsih, Wahyu Hardyanto, Alpon Sepriando, Djuniadi http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-30
publication date: 2025-12-30
starting page: 872
ending page: 880
doi: 10.31539/xy82p541

Pengembangan Evaluasi Pembelajaran Ular Tangga Untuk Meningkatkan Hasil Belajar Siswa Materi Barisan dan Deret
type: item
description: This study aims to create a valid, practical, and efficient evaluation of snakes and ladders learning for grade X students at SMA Negeri 2 Percut Sei Tuan for the 2024/2025 academic year. The method used in this study is the development of Research and Development (R&D) with the ADDIE model, which consists of Analysis, Design, Development, Implementation, and Evaluation. The research sample consisted of 32 students from grades X-C. The results of the validation study from material and media experts showed an average value of 92.8% which is classified as Very Valid. From teacher responses, an average value of 3.53 was obtained which was considered Very Practical. In addition, the effectiveness of the snakes and ladders learning evaluation product for the material of arithmetic sequences and series can be seen from student responses who got a score of 3.02 with effective criteria, while the results of the pretest test showed a percentage of completion of 84.3 which was considered effective, and the results of the posttest trial obtained a percentage of completion of 93.75 which was categorized as very effective. The conclusion is that the snakes and ladders learning media can be an efficient choice to improve student learning outcomes. Keywords: Sequences, Series, Mathematics, Evaluation Development Snakes Ladders
subject: Articles
  topic: section
subject: Pengembangan Evaluasi
  topic: keywords
subject: Ular Tangga
  topic: keywords
subject: Matematika
  topic: keywords
subject: Barisan dan Deret
  topic: keywords
creator: Lilis Suryani Nasution
creator: Mara Samin Lubis
rights: Copyright (c) 2025 Lilis Suryani Nasution, Mara Samin Lubis, Mara Samin Lubis http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-09
publication date: 2025-08-09
starting page: 466
ending page: 474
doi: 10.31539/q9166r60

Etnomatematika: Pengenalan Geometri Bangun Datar dan Bangun Ruang Melalui Bangunan Bersejarah Tjong A Fie
type: item
description: This study aims to describe the introduction of ethnomathematics geometry of flat and spatial shapes through the historical building of Tjong A Fie in North Sumatra. The method used is a qualitative method with an ethnographic approach. Data collection techniques in this study used observation, interviews and documentation. The data analysis technique uses the Milles and Huberman model, namely data reduction, presentation, and data verification. The results showed that there were many links between Tjong A Fie and mathematical concepts, especially in flat geometry materials such as squares, rectangles, trapezoids, rhombuses, kites, circles, polygons and spatial shapes such as cubes, beams, tubes, spheres, and hexagon prisms. In conclusion, it is highly recommended that teachers utilize or use the Tjong A Fie building as a tool for the continuity of the teaching and learning process at school so that students can directly relate mathematical concepts in the real world. Keywords: Ethnomathematics, Geometry, Tjong A Fie
subject: Articles
  topic: section
subject: Kata kunci: etnomatematika, geometri, Tjong A Fie
  topic: keywords
creator: Fathiyah Rahma Hamali Zega
creator: Suci Dahlya Narpila
rights: Copyright (c) 2025 Fathiyah Rahma Hamali Zega, Suci Dahlya Narpila http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-10
publication date: 2025-08-10
starting page: 530
ending page: 545
doi: 10.31539/8g4xp151

Validasi Model Numerik Spektrum Gelombang Menggunakan Data Wave Recorder Platform Minyak & Gas Lepas Pantai
type: item
description: Accurate ocean wave forecasting plays a pivotal role in navigational safety, maritime resource management, and offshore oil and gas operations, particularly within the Makassar Strait, which exhibits complex hydrodynamic dynamics. This study aims to evaluate the performance of the InaWave numerical model integrated into the BMKG Ocean Forecasting System through validation against in-situ observation data from a wave recorder positioned on the FPU Jangkrik offshore platform throughout 2023. The results indicate that the InaWave model effectively captures the fluctuation patterns of Significant Wave Height (SWH) with a strong correlation coefficient of 0.88, demonstrating a robust linear relationship between simulations and observations. However, the model exhibits a systematic underestimation bias, specifically during high-wave conditions, with a Root Mean Square Error (RMSE) of 0.36 meters. The error distribution, centered near zero, suggests high accuracy under low-to-moderate wave conditions, yet highlights the necessity for refinement in capturing extreme dynamics. Overall, this research underscores that integrating in-situ observational data from offshore platforms is a critical instrument for enhancing the precision of ocean forecasting systems. The successful reconstruction of wave patterns by the InaWave model confirms its operational reliability for complex maritime environments. These findings not only provide a scientific foundation for strengthening Indonesia’s maritime early warning systems but also offer an applicable validation framework for numerical model development in other strategic global waters to mitigate operational risks and ensure marine ecosystem sustainability. Keywords: InaWave Model, Numerical Model Validation, X-Band Wave Radar, Significant Wave Height, Makassar Strait.
subject: Articles
  topic: section
creator: Gatot Defriyantoro
creator: Samuel Radityo
creator: Eko Supriyadi
creator: Furqon Alfahmi
creator: Ngurah Made Darma Putra
rights: Copyright (c) 2025 Gatot Defriyantoro, Samuel Radityo, Samuel Radityo, Eko Supriyadi, Furqon Alfahmi, Ngurah Made Darma Putra http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 983
ending page: 995
doi: 10.31539/p1qpex48

Klasifikasi Jenis Tanah di Kota Bengkulu Berdasarkan Metode Horizontal To Vertical Spectra Ratio
type: item
description: Bengkulu City is one of the regions in Indonesia with a high level of earthquake susceptibility. To understand the seismic characteristics of the soil in this area, this study employs the Horizontal-to-Vertical Spectral Ratio (HVSR) method based on microtremor data to identify the dominant frequency (F0) and amplification factor (A0), which play a crucial role in seismic microzonation analysis. This study collected 143 microtremor measurement points distributed across Bengkulu City, which were analyzed using Geopsy software to obtain dominant period (Tdom) values and classify soil types. The analysis results indicate that the dominant period values in Bengkulu City range from 0.09213 s to 0.722799 s, reflecting variations in soil characteristics across the region. Overall, Bengkulu City is predominantly composed of medium to hard soil, with most areas such as Pondok Kelapa, Muara Bangka Hulu, the southern part of Sungai Serut, Selebar, and Kampung Melayu classified as medium soil. Meanwhile, hard soil to bedrock classifications are found in Teluk Segara, Ratu Samban, Ratu Agung, Singaran Pati, and the southeastern part of Muara Bangka Hulu, which are dominated by the Alluvium and Terrace Alluvium formations. Additionally, soft soil areas are located in the central part of Sungai Serut, influenced by their proximity to water bodies such as lakes and swamps. These findings confirm that areas with soft soil have a higher potential for seismic amplification, making them more vulnerable to earthquake shaking. Therefore, the results of this study are expected to serve as a reference for disaster mitigation, particularly in earthquake-resistant infrastructure planning and construction in Bengkulu City. Keywords: HVSR, Dominant period, Amplification
subject: Articles
  topic: section
creator: Istofiyah Istofiyah
creator: Supriyadi Supriyadi
creator: M. Aryono Adhi
creator: Aditya Setyo Rahman
creator: Sigit Pramono
creator: Oriza Sativa
creator: Ardian Yudhi Octantyo
creator: Nur Fani Habibah
rights: Copyright (c) 2025 Istofiyah Istofiyah, Supriyadi, M. Aryono Adhi, Aditya Setyo Rahman, Sigit Pramono, Oriza Sativa, Ardian Yudhi Octantyo, Nur Fani Habibah http://creativecommons.org/licenses/by-nc/4.0
date: 2025-12-31
publication date: 2025-12-31
starting page: 962
ending page: 971
doi: 10.31539/7x5pfg74

Pengaruh Model Pembelajaran Think Talk Write (TTW) terhadap Kemampuan Pemahaman Konsep Matematis Siswa
type: item
description: This study aims to determine the effect of the Think Talk Write (TTW) learning model on the mathematical concept comprehension abilities of eighth-grade students at MTs Istiqlal Delitua. The method used is a quantitative approach with a quasi-experimental research design and a pretest-posttest control group. The population consists of all eighth-grade students at MTs Istiqlal Delitua for the 2024/2025 academic year, comprising four classes totaling 120 students. The research sample was selected using cluster random sampling, resulting in classes VIII-C and VIII-D as the sample, each consisting of 30 students. The research instrument was a concept understanding ability test in the form of a pretest and posttest. Subsequently, the research data was analyzed using a t-test after conducting descriptive statistical analysis and inferential statistical analysis, namely normality and homogeneity tests. The research results showed that the t-test calculation yielded with a significance level of indicating accepted and rejected. Conclusion, There is an effect of the Think Talk Write (TTW) learning model on students' mathematical concept comprehension skills in class VIII at MTs Istiqlal Deli Tua. Keywords: Students' Mathematical Concept Understanding Ability, Think Talk Write (TTW).
subject: Articles
  topic: section
subject: Kata Kunci: Think Talk Write (TTW), Kemampuan Pemahaman Konsep Matematis Siswa.
  topic: keywords
creator: Nabilah Azrilia Marpaung
creator: Siti Maysarah
rights: Copyright (c) 2025 Nabilah Azrilia Marpaung, Siti Maysarah http://creativecommons.org/licenses/by-nc/4.0
date: 2025-08-09
publication date: 2025-08-09
starting page: 558
ending page: 569
doi: 10.31539/vgafd326