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FARABI: Jurnal Matematika dan Pendidikan Matematika
Published by Universitas Alwashliyah Medan
ISSN : 26232332     EISSN : 27985474     DOI : https://doi.org/10.47662/farabi.v4i1.78
Core Subject : Science, Education,
Computer Science & IT Decision Sciences, Operations Research & Management Mathematics
FARABI; Jurnal Matematika dan Pendidikan Matematika (JMPM) menyediakan forum untuk menerbitkan artikel penelitian, artikel review, dan berita teknologi baru yang terkait dengan pendidikan matematika dan terapan. Jurnal ini disediakan untuk penulis, guru, mahasiswa, profesor, dan peneliti, yang akan mempublikasikan laporan penelitian atau artikel tinjauan pustaka (hanya untuk kontributor yang diundang) tentang pendidikan matematika dan instruksionalnya untuk penulis dan pembaca di seluruh dunia FARABI; Jurnal Matematika dan Pendidikan Matematika (JMPM) menerima artikel ilmiah dengan lingkup penelitian berikut, tetapi tidak terbatas pada bidang penelitian survei, penelitian dan pengembangan, penelitian eksperimental, penelitian tindakan kelas, Graph Theories and aplikasinya, Operation Research and aplikasinya.
Arjuna Subject : Umum - Umum
Articles 161 Documents
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Comparison of Mathematics Learning Outcomes of Seventh Grade Junior High School Students between DL and PBL Models based on Midterm Test Scores Mau, Elfrida Olo; Tnesi, Stiven Aloysius; Jomar, Guido Stefano; Lakapu, Meryani
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1195

Abstract

This study aims to compare the effectiveness of the Discovery Learning (DL) and Problem-Based Learning (PBL) models on the mathematics learning outcomes of seventh-grade junior high school students, as measured by midterm exam scores. The background of this study is based on the low international achievement of Indonesian students in mathematics and the dominance of conventional approaches in the learning process. The method used is a quantitative comparative approach with a quasi-experimental design. The sample consists of two classes, each receiving either the DL or PBL model. Data were collected through documentation of MTE scores and analyzed using normality, homogeneity, and independent two-sample t-tests. The analysis results showed that both data sets were normally distributed and homogeneous. The t-test yielded a significance value of 0.823 (p > 0.05), indicating no significant difference in mathematics learning outcomes between students taught using the DL model and those taught using the PBL model. The effect size calculation (Cohen’s d = 0.18) indicated a very small effect. These findings indicate that the effectiveness of the two models is relatively balanced, and learning success is more influenced by non-instructional factors such as learning style and student motivation. Therefore, teachers are advised to choose a learning model that suits the characteristics of their students. This study suggests further research with a broader scope and a mixed-methods approach to gain a more comprehensive understanding. These results are important as a reference for selecting contextual learning strategies.
Metode Regresi Linier Berganda dan Cochrane-Orcutt untuk Menganalisis Daya Beli Masyarakat di Kabupaten Halmahera Utara Puny, Yosses Rolan; Kahar, Arifin M.; Rizanto, Ilham A. R.; Lesnussa, Trifena P.; Kaseside, Meidy
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1211

Abstract

Purchasing power parity, as measured by adjusted real per capita expenditure, is one of the essential indicators for evaluating the level of welfare within a community in a region. Several economic factors can influence the increase in purchasing power parity in an area, including local government spending, investment, and economic growth. By considering the current achievement of purchasing power parity and the relationship between the three economic factors with purchasing power parity, this study aims to determine the effect of local government spending, investment, and economic growth on the purchasing power parity in North Halmahera Regency for the period 2011-2024. To analyze these relationships, we used Multiple Linear Regression along with the Cochrane-Orcutt method to overcome the problem of autocorrelation assumption in the residuals. After conducting two iterations of the Cochrane-Orcutt method to develop a model with non-autocorrelation, the results show that the investment variable has a positive and significant effect on purchasing power parity. In contrast, local government spending and economic growth exhibit a negative and significant effect on purchasing power parity in North Halmahera Regency.
Studi Pendahuluan Analisis Kemampuan Berpikir Kritis Matematika Siswa Kelas VII SMP Negeri 1 Sukadiri Mawar, Uning Duwi; Hartani, Mukti; Nurhasanah, Neneng
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1225

Abstract

The purpose of this preliminary study is to analyze the mathematical critical thinking abilities of seventh-grade students at SMP Negeri 1 Sukadiri. This study uses descriptive qualitative research. The analysis techniques used are interviews, observation, and documentation. The subjects in this preliminary study are mathematics teachers and seventh-grade students at SMP Negeri 1 Sukadiri. The results of the observation show that mathematics learning at SMP Negeri 1 Sukadiri is student-centered, where students tend to be active but hesitant in answering questions given by the teacher. The results of the interviews indicate that students struggle to understand and solve problems related to the material and basic concepts they have not mastered, which is compounded by a lack of HOTS practice questions and low interest in learning.  The results of documentation show that students' test scores on statistics material are below the KKTP and have the lowest average score compared to other materials in the second semester. . Additionally, students in class VII.7 have the lowest average score among other seventh-grade classes on this material. The conclusion of this preliminary study is that students' mathematical critical thinking skills on statistics material do not meet expectations.
Analisis Kemampuan Pemecahan Masalah Matematis Siswa Kelas XI SMKS IT Marinah Al-Hidayah Medan Sipahutar, Arsad Halomoan
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1227

Abstract

This study aims to analyze students' mathematical problem solving skills. The research method used is descriptive qualitative. The subjects in this study were XI grade students of SMKS IT Marinah Al-Hidayah Medan, namely 26 people. Data collection techniques using student mathematical problem solving ability test instrument on opportunity material. The data analysis technique was carried out in three stages, namely checking the results of student answers, presenting test data and drawing conclusions from the research results. The results showed that the mathematical problem solving ability of 11th grade students of SMKS IT Marinah Al-Hidayah Medan was divided into three categories, namely high, medium and low. Students with high mathematical problem solving ability are able to fulfill the indicators of understanding the problem for all questions, planning solutions for questions number 1 and 3, carrying out plans for questions number 1 and 3 and checking back for questions number 1 and 3. Students with medium mathematical problem solving ability are able to understand the indicators of understanding the problem for all questions, planning problems for questions number 1 and 3, carrying out plans for question number 3 and checking back for problem question 3.Students with low mathematical problem solving ability are not able to understand all.
Identifikasi Kesulitan Siswa dalam Menyelesaikan Soal HOTS Ditinjau dari Teori Polya Zulfia, Shabrina Khilda; Ermawati, Diana; Amaliyah, Fitriyah
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1236

Abstract

Students' Mathematical Problem Solving Ability in solving HOTS problems is still low because it is considered difficult and rarely taught in schools, therefore students often answer directly without analyzing and determining a solution strategy. The purpose of this study is to describe students' difficulties in solving HOTS problems in terms of Polya's theory. This study uses a qualitative research method using a case study approach. The subjects in this study were 9 students, 3 students in the low category, 3 students in the medium category, and 3 students in the high category. Data collection techniques used were observation, interviews, and documentation. Based on the results of the analysis of the difficulties experienced by students include difficulty writing information, difficulty writing formulas, errors in calculations, and not drawing conclusions. It can be concluded that low category students have difficulty at the stage of understanding the problem, medium category students have difficulty at the stage of implementing the plan, and high category students have difficulty at the stage of drawing conclusions. Based on the results of the study, in further research, appropriate strategies can be carried out to overcome students' difficulties in solving HOTS problems.
Prediksi Faktor Pengaruh Klaim Asuransi Menggunakan Regresi Logistik Mahadewi, Ni Made Mila; Sutany, Adelia; Kurniawan, Tania Oktavionabila; Nugraha, Edwin Setiawan
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1238

Abstract

Bagi perusahaan asuransi, memahami faktor-faktor yang mempengaruhi pengajuan klaim sangat penting. Hal ini harus dilakukan oleh perusahaan asuransi agar mereka dapat menjaga keseimbangan dari jumlah premi yang didapatkan dan jumlah klaim yang dilakukan oleh nasabah. Ketidakpastian terkait faktor risiko yang signifikan dapat menimbulkan kesulitan dalam menentukan harga premi yang tepat dan pengelolaan risiko yang akan dilakukan oleh perusahaan. Penelitian ini bertujuan untuk menganalisis faktor apa saja yang dapat memengaruhi kemungkinan nasabah mengajukan klaim asuransi dengan menggunakan metode regresi logistik. Hasil yang didapatkan dari analisis ini menunjukkan bahwa dari 7 variabel bebas ada 4 variabel yang mempengaruhi jumlah klaim, yakni age, children, bmi, dan smoker mempengaruhi klaim. Kinerja dari model ini menunjukkan bahwa hasil dari accuracy sebesar 89%, precision sebesar 90%, sensitivity sebesar 91% dan F1-score sebesar 90%. Penelitian ini berharap bahwa model yang telah dibuat dapat menjadi acuan bagi masyarakat dan industri asuransi untuk mengetahui faktor penyebab klaim secara akurat dan efisien.
Meningkatkan Kemampuan Problem Solving Siswa Kelas V SDN Sukarindik Menggunakan Media Puzzle Pada Materi Pecahan Campuran Syabani, Rahmi Nur; Zahrah, Riza Fatimah; Febriani, Winarti Dwi
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1240

Abstract

Problem solving ability is one of the important skills in mathematics learning, especially in solving story problems on mixed fractions. The results of initial observations in grade V of SDN Sukarindik showed that students' problem solving abilities were still low, with only 33.33% of students achieving the Minimum Completion Criteria (KKM). This study aims to improve students' problem solving abilities through the use of fraction puzzle media in mathematics learning. The method used was the Classroom Action Research (CAR) model of Kemmis and McTaggart which was implemented in two cycles. Data collection instruments were tests, observations, and documentation. The results of the study showed a significant increase. The average student score increased by 36.91 points, namely from 46.42 (very poor category) in the initial ability test stage to 83.33 (good category) in cycle II. Learning completeness also increased by 57.14%, from 33.33% (very poor category) to 90.47% (very good category). Student activity in learning increased by 8%, from 80% to 88% (very good category). Teachers' ability in lesson planning also showed a 2.18% increase, from 96.73% to 98.91% (very good category). Thus, the use of puzzles has been proven to improve students' problem-solving skills in mixed fractions, as well as creating active, meaningful, and well-planned learning.
Penerapan Regresi Logistik Biner Pada Faktor-Faktor Perceraian di Kota Medan Fitriani, Fitriani; Cipta, Hendra; Widyasari, Rina
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1243

Abstract

Divorce is a court decision on the termination of a marriage. Divorce brings with it a negative impact, especially on the children of the couple's marriage. Children who are victims of divorce tend to be prone to feeling afraid, sad, guilty to trigger stress and depression in children which then has a bad impact on relationships during the child's growth and development. Therefore, it is necessary to conduct an analysis to find out the factors of divorce. In this research, the analysis used is binary logistic regression with the response variables in the binary category of divorce, namely “cerai talak” and “cerai gugat”. While the stimulus variables in this study were 13 objects obtained based on secondary data documentation of Courts. The results of this research are obtained five factors that have a significant effect, namely age at marriage and profession of who filing for divorce and divorce defendant, as well as the education of who filing for divorce. The interpretation of the results of binary logistic regression analysis shows that, the age of divorced defendant at the time of marriage has a 1,15 times greater effect on the cerai gugat, while the age of who filed for divorce has a 0.68 times greater effect on the cerai talak. Keywords: Divorce, Factors, Binary Logistics Regression
Peningkatan Hasil Belajar Matematika Siswa pada Materi Pola Bilangan Menggunakan Media Kartu Bilangan di Sekolah Menengah Pertama Saldaha, Ancelina Dosantos; Nifanngelyau, Jakobus; Halirat, Karten
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1244

Abstract

This study aims to analyze the effectiveness of using number card media in improving students’ learning outcomes on number pattern material. The research method employed was an experimental approach with a one-group pretest-posttest design involving 23 students as research subjects. The research instrument was a learning outcome test that had been validated through expert judgment and tested for reliability using Cronbach’s Alpha, which obtained a value of 0.682 categorized as moderate. Data were analyzed descriptively and inferentially using normality and homogeneity tests, paired sample t-test, and N-Gain calculation. The results showed a significant improvement between the pretest scores (mean = 22.78) and posttest scores (mean = 84.30), with the paired sample t-test indicating a sig. (2-tailed) value smaller than the significance level (0.000 ≤ 0.05), suggesting a significant difference. The average classical N-Gain of 0.79 was categorized as high, with 74% of students achieving improvement in the high category and 26% in the moderate category. These findings demonstrate that number card media plays a significant role in facilitating students to construct an understanding of abstract concepts through concrete learning experiences, in line with Piaget’s and Bruner’s constructivist theory.
Analisis Perbandingan Produktivitas Tandan Buah Segar Menggunakan ANOVA One Way dan Uji Tukey pada Tiga Wilayah Operasional PTPN IV Regional 4 Sihombing, Febriana; Rozi, Syamsyida Rozi
FARABI: Jurnal Matematika dan Pendidikan Matematika Vol 8 No 2 (2025): FARABI (In Press)
Publisher : Program Studi Pendidikan Matematika FKIP UNIVA Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/farabi.v8i2.1267

Abstract

Kelapa sawit merupakan salah satu komoditas perkebunan utama yang berperan penting dalam perekonomian nasional. Tandan Buah Segar (TBS) menjadi bahan baku utama dalam proses pengolahan Crude Palm Oil (CPO), yang memiliki nilai ekonomi tinggi. Penelitian ini bertujuan untuk menganalisis perbedaan produktivitas TBS pada tiga wilayah operasional PT Perkebunan Nusantara IV Regional 4, yaitu Kebun Ophir, Kebun Bunut, dan Kebun Bukit Kausar dengan tahun tanam yang sama. Metode penelitian yang digunakan adalah ANOVA One Way untuk menguji perbedaan rata-rata produktivitas antar kebun, dan uji lanjut Tukey HSD untuk mengetahui kelompok kebun yang berbeda nyata. Data yang digunakan merupakan data sekunder hasil produksi TBS (Kg/Ha) bulan April 2025 yang diperoleh dari bagian Akuntansi dan Keuangan perusahaan. Hasil analisis menunjukkan adanya perbedaan signifikan antar kebun dengan nilai signifikansi < 0,05. Uji lanjut Tukey HSD menunjukkan bahwa Kebun Bukit Kausar memiliki produktivitas tertinggi, sedangkan Kebun Ophir terendah. Hasil penelitian ini diharapkan dapat menjadi bahan pertimbangan bagi manajemen perusahaan dalam merumuskan strategi peningkatan produktivitas secara berkelanjutan di masa mendatang.

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