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All Journal Jurnal Daya Matematis Sinkron : Jurnal dan Penelitian Teknik Informatika Desimal: Jurnal Matematika Justek : Jurnal Sains Dan Teknologi Zero : Jurnal Sains, Matematika, dan Terapan AXIOM : Jurnal Pendidikan dan Matematika ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) JCRS (Journal of Community Research and Service) Jutisi: Jurnal Ilmiah Teknik Informatika dan Sistem Informasi Jurnal Varian Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Jurnal Math-UMB.EDU Journal of Information Technology (JIfoTech) Leibniz: Jurnal Matematika Jurnal IPTEK Bagi Masyarakat Jurnal Pijar MIPA Jurnal MathEducation Nusantara Journal of Mathematics Instruction, Social Research and Opinion Bulletin of Applied Mathematics and Mathematics Education Euclid Jurnal Bayesian : Jurnal Ilmiah Statistika dan Ekonometrika Journal of Medives: Journal of Mathematics Education IKIP Veteran Semarang LOKAKARYA Jurnal Penelitian Pendidikan MIPA Jurnal Arjuna : Publikasi Ilmu Pendidikan, Bahasa dan Matematika Jurnal Pengabdian Masyarakat dan Riset Pendidikan Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa Relevan : Jurnal Pendidikan Matematika Media Pendidikan Matematika
Siregar, Machrani Adi Putri
Universitas Islam Negeri Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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PENGARUH PENDEKATAN RME TERHADAP KEMAMPUAN PEMECAHAN MASALAH DAN KECEMASAN MATEMATIKA Rangkuti, Robiatul Adawiyah; Rakhmawati, Fibri; Siregar, Machrani Adi Putri
Relevan : Jurnal Pendidikan Matematika Vol 5 No 1 (2025): Relevan : Jurnal Pendidikan Matematika
Publisher : Yayasan Amanah Nur Aman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58432/relevan.v5i1.1250

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pendekatan realistic mathematic education (RME) terhadap kemampuan pemecahan masalah dan kecemasan matematika pada siswa kelas VIII SMP. Penelitian ini dilaksanakan di SMP Muhammadiyah 7 Medan. Penelitian ini merupakan penelitian eksperimen dengan metode quasi eksperimen dengan pendekatan kuantitatif. Data dikumpulkan melalui instrumen tes berupa soal uraian dan non tes berupa angket. Hasil penelitian adanya pengaruh realistic mathematic education terhadap kemampuan pemecahan masalah berdasarkan R Square adalah 21% dan besarnya pengaruh realistic mathematic education terhadap tingkat kecemasan matematika siswa adalah 31,4%. menunjukkan bahwa kemampuan pemecahan masalah siswa yang diajarkan dengan menggunakan pendekatan realistic mathematic education lebih tinggi dibandingkan dengan siswa yang diajarkan dengan menggunakan pembelajaran konvensional. ABSTRACT This study aims to determine the effect of realistic mathematic education (RME) approach on problem solving ability and mathematics anxiety in class VIII junior high school students. This research was conducted at SMP Muhammadiyah 7 Medan. This research is an experimental research with quasi experimental method with quantitative approach. Data were collected through test instruments in the form of description questions and non-tests in the form of questionnaires. The results showed that the influence of realistic mathematic education on problem solving ability based on R Square is 21% and the magnitude of the influence of realistic mathematic education on students' math anxiety level is 31.4%. shows that the problem solving ability of students taught using realistic mathematic education approach is higher than students taught using conventional learning.
Meta-analysis: The effect of means ends analysis learning model on students’ mathematical problem-solving ability Khoiriyah, Himatun; siregar, Machrani Adi Putri
Desimal: Jurnal Matematika Vol. 6 No. 2 (2023): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v6i2.18137

Abstract

This study aimed to determine the effect of using the MEA learning model on improving students' mathematical problem-solving abilities. The MEA learning model is a model that teachers can use to improve students' problem-solving abilities. This research is meta-analytic, namely by collecting data from previous researchers and then finding the effect size of all the data that has been obtained. Many of the data points found that match this research have met the criteria when searched using Google Scholar with the specified keywords. This research analysis tool uses SPSS software version 29.0 and uses the Cohen formula in data analysis. The finding of the effect size of the entire data is 1.431, which is categorized as having a considerable influence. Based on moderator variable analysis, the number of samples with  showed a larger effect size than . Furthermore, based on the level of education of junior high school students, it has an effect size that is categorized as having a large influence. This meta-analysis study shows that using the MEA learning model affects students' mathematical problem-solving abilities.
The effect of problem based learning on students' mathematical literacy ability Andini, Fadhila Andini; Siregar, Machrani Adi Putri
Desimal: Jurnal Matematika Vol. 7 No. 1 (2024): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v7i1.22211

Abstract

This research is motivated by the many problems that often arise during learning in the classroom, especially mathematics. The purpose of this study was to determine how the description of students' abilities and problems in learning mathematics about relations and functions is taught using problem-based learning models and conventional learning models. With a post-test-only control group design, this research is quasi-experimental. Based on the results of data analysis obtained sig. (2-tailed) of 0.000 <0.05. Therefore, it can be concluded that Problem Based Learning and conventional learning produce significantly different levels of mathematical literacy. The practical implication of this study is that educational practitioners, particularly mathematics teachers at the junior high school level, can utilize these findings to improve their teaching. PBL can be used as a basis for designing more innovative and student-centered learning units, which can help students develop a deeper understanding of mathematical concepts and improve their ability to solve problems. Adequate support and training for teachers in implementing PBL is also important to ensure its successful implementation in the classroom.
Penerapan Metode MOORA dalam Pengambilan Keputusan untuk Menentukan Bibit Sawit Terbaik Pranata, Anang; Siregar, Machrani Adi Putri; Siregar, R. Maisaroh Rezekiyah
Leibniz: Jurnal Matematika Vol. 5 No. 02 (2025): Leibniz: Jurnal Matematika
Publisher : Program Studi Matematika - Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas San Pedro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59632/leibniz.v5i02.629

Abstract

Tanaman kelapa sawit (Elaeis guineensis Jacq) merupakan komoditas perkebunan strategis yang memberikan kontribusi ekonomi besar per hektar secara global. Peningkatan kebutuhan dunia akan minyak sawit menuntut strategi produksi yang efektif, salah satunya melalui pemilihan bibit unggul. Pemilihan bibit yang tepat menjadi faktor penting dalam mendukung produktivitas dan keberhasilan budidaya. Beberapa jenis bibit unggul yang umum digunakan oleh petani antara lain Dumpy, Yangambi, SP540, dan DxP 540 NG. Untuk mempermudah proses pengambilan keputusan dalam pemilihan bibit terbaik, penelitian ini menerapkan metode MOORA (Multi-Objective Optimization by Ratio Analysis), sebuah metode pengambilan keputusan multikriteria yang sederhana, fleksibel, dan efektif dalam menangani banyak kriteria secara simultan. Penelitian ini menggunakan delapan kriteria evaluasi bibit kelapa sawit dengan lima alternatif jenis bibit. Setiap kriteria diberi bobot berdasarkan hasil wawancara dengan ahli, kemudian dinormalisasi dan dihitung nilai preferensinya (Yi) untuk menentukan peringkat. Hasil analisis menunjukkan bahwa bibit terbaik adalah DxP 540 NG dengan nilai Yi sebesar 0,426, diikuti oleh turunan SP540 (0,357), turunan Yangambi (0,320), DxP Langkat (0,315), dan DyP Sungai Pancur I (Dumpy) (0,315). Hasil ini membuktikan bahwa metode MOORA dapat digunakan sebagai sistem pendukung keputusan yang membantu petani dalam memilih bibit sawit terbaik secara objektif dan sistematis. Pendekatan ini juga dapat dikembangkan lebih lanjut dalam konteks pengambilan keputusan pertanian lainnya yang melibatkan banyak kriteria.
Deli River Water Quality Control In Medan City Using Statistical Methods Quality Control Rizkina, Manisyah; Siregar, Machrani Adi Putri; Batubara, Ana Uzla
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i2.6591

Abstract

Clean water is a type of water-based resource that is of good quality and is commonly used by humans for consumption or in carrying out daily activities. Clean water quality that meets standards/quality is very difficult to obtain because river water quality has been polluted by various kinds of waste from various human activities, so that the potential impact on river quality decreases both in terms of quantity and quality. 70% of the Deli River pollution is solid and liquid waste, domestic waste, industrial waste, and along the Deli River it has affected the quality of the river water. To quantitatively identify air quality, the Statistical Quality Control method can be used. Statistical quality control is a collection of strategies, techniques, and actions taken to ensure that they produce a quality product. The aim of this research is to determine the control of the water quality of the Deli River in Medan City using Statistical Quality Control. Based on the data obtained, the water quality standards of the Deli River in the Sumatra II River Basin Agency from January 2023 - December 2023 have not been statistically controlled because there are several data samples that are out of control. Then, Deli River water quality control was carried out based on graphic control using SQC (Statistical Quality Control). The results of quality control using SQC show that SQC provides different controls, because in SQC TDS control on data on controlled 3 times, while the and R data on DO, the and R data on and and R data for fatty oil are controlled.
CLASSIFICATION OF TODDLER NUTRITIONAL STATUS USING A BINARY CLASSIFICATION TREE WITH ALGORITHMSQUICK, UNBIASED, EFFICENT, STATISTICAL TREE Ramadhani, Cahya Dwi; Siregar, Machrani Adi Putri
ZERO: Jurnal Sains, Matematika dan Terapan Vol 7, No 1 (2023): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v7i1.17339

Abstract

Determination of nutritional status is very important in helping to monitor the state of nutritional health growth in toddlers every time. In this study, there were 70 identity data for toddlers for the 2022 period obtained from the KB Counseling Center in the Pegajahan sub-district, in Sukasari Village. There are four independent variables used, namely gender, health insurance, weight, and height. The purpose of this study is to determine the classification that is formed and the accuracy of the resulting classification on the nutritional status of toddlers. Classification which is part of data mining can make decisions on the nutritional status of toddlers faster and more efficiently. QUEST method (Quick, Unbiased, Efficient, Statistical Trees) is one of the statistical methods that can be used to form a decision tree and classify an object using a separator algorithm that produces a binary tree. From the results of the classification there is a variable height (?!) as the limiting variable. in the early stages of insulation, the parent node which consists of 70 toddler data. Variables are partitioned based on height into two nodes, namely node (1) and node (2). Node (1) is a node containing 25 children under five with a height of more than 85.79 cm, while node (2) is a node for 45 children under five with a height less than or equal to 85.79 cm. in the next process, the blocking is terminated. the overall value of the accuracy of the classification of trees formed is 95.7%. Thus, the probability of misclassification of the tree is 4.3%, which means that this classification tree is optimal.
THE APPLICATION OF SEASONAL TREND DECOMPOSITION USING LOESS FOR EXPORT FORECASTING BY ECONOMIC COMMODITY GROUP IN NORTH SUMATRA Yunisa, Fahira Audri; Siregar, Machrani Adi Putri
ZERO: Jurnal Sains, Matematika dan Terapan Vol 7, No 1 (2023): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v7i1.17341

Abstract

In export data, there are often seasonal fluctuations caused by various factors, and STL (Seasonal Trend decomposition using Loess) can help effectively separate these seasonal components. STL is an algorithm developed to decompose a time series into three components: trend, seasonal, and remainder, aiding in a better understanding of the underlying patterns and variations in the data. The data taken in this study are data on the number of exports (tonnes) in the period January 2018 to December 2022 sourced from bps. From the forecasting results it can be concluded that the largest BM export value is 6357.6131 (tons), the largest BP export value is 859804.0 (tons) and the largest BP export value is 113157.64 (tons).
EKSPLORASI ETNOMATEMATIKA MUSEUM DELI SERDANG Irfansyah, Fahriza; Siregar, Machrani Adi putri
Euclid Vol 10 No 3 (2023)
Publisher : Universitas Swadaya Gunung Jati.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/e.v10i3.8643

Abstract

Matematika dan budaya merupakan dua hal yang tidak dapat dipisahkan karena penerapan ilmu matematika selalu diterapkan dalam kehidupan sehari-hari. Budaya dapat dijadikan sumber pembelajaran bagi siswa di sekolah. Penerapan matematika dan budaya yang ada di sekitar siswa dapat dijadikan hal yang inovatif dalam pembelajaran serta dapat melatih siswa untuk berpikir memecahkan suatu masalah. Ilmu matematika yang dihubungkan dengan budaya dinamakan etnomatematika. Salah satu tempat bersejarah di Deli Serdang yaitu Museum Deli Serdang yang lokasinya berada di Jalan Petapahan Kec. Lubuk Pakam Kab. Deli Serdang. Dalam penelitian ini yang dijadikan sebagai etnomatematika adalah objek Museum Deli Serdang. Penelitian ini dilakukan bertujuan untuk mengeksplorasi etnomatematika pada Museum Deli Serdang. Penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan etnografi. Pengumpulan data yang dilakukan peneliti secara langsung melalui observasi, wawancara, dokumentasi, dan studi pustaka. Berdasarkan dari hasil pengamatan yang dilakukan oleh peneliti, peneliti memperoleh beberapa konsep matematika yaitu bangun datar dan bangun ruang di Museum Deli Serdang. Dari temuan eksplorasi pada Museum Deli Serdang memperoleh bahwa terdapat konsep matematika yaitu bangun datar segi empat, seperti persegi panjang, persegi, trapesium, dan bangun datar sisi lengkung berbentuk lingkaran serta bangun ruang sisi lengkung yaitu tabung.
THE EFFECT OF DISPOSITION ON STUDENT MATHEMATICS LEARNING ACHIEVEMENT IN MEDAN STATE 28 JUNIOR HIGH SCHOOL Siregar, Machrani Adi Putri; Lisma, Eryanti
Journal of Community Research and Service Vol. 3 No. 1: January 2019
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jcrs.v3i1.14402

Abstract

This study titled as The Effect of Disposition on Student Mathematics Learning Achievement in Medan State 28 Junior High School. In this study, disposition is an independent variable and achievement in mathematics learning is a dependent variable. Mathematical disposition is a change of student™s tendency in assuming and behaving toward mathematics, also their act when learning mathematics. For example, when students can solve non-routine problems, their behavior and assumption of mathematics as a student become more positive. The more mathematical concepts understood, the more students convinced that mathematics can be mastered. Based on theory, there are many factors that influence student's achievement in mathematics learning. In this study, researcher only took disposition factor. This research took place at Medan State 28 Junior High School which located at Karya Bersama St. No. 17 Medan Johor. The method of this study is a quantitative method with all of VIII class students which amount to 273 students and divided into 8 (eight) study groups. The data obtained by giving a questionnaire consisting of 19 statements. The data then analyzed by using simple linear regression analysis. The data analysis was performed by using SPSS 21 software for Windows. From the results of this study, it can be concluded that there is an effect of disposition on students' achievement in mathematics learning or in other words, students' achievements in mathematics learning are influenced by the disposition attitudes that students have in mathematics learning. The influence occurs in the disposition of achievement in mathematics learning is positive, that is equal to 6.6%.Keywords: Disposition, Mathematics Learning Achievement.
PENGARUH PENDEKATAN OPEN-ENDED DAN KONTEKSTUAL TERHADAP KEMAMPUAN PEMECAHAN MASALAH MATEMATIS SISWA Hartika Harahap, Afifah; Siregar, Machrani Adi Putri; Hasanah, Rusi Ulfa
Relevan : Jurnal Pendidikan Matematika Vol 4 No 4 (2024): Relevan : Jurnal Pendidikan Matematika
Publisher : Yayasan Amanah Nur Aman

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

Abstract

Penelitian ini dilakukan untuk mengetahui apakah terdapat pengaruh pendekatan open-ended dan pendekatan kontekstual terhadap kemampuan pemecahan masalah matematis siswa dikelas VII MTs Amaliyah Sunggal. Penelitian ini merupakan penelitian kuantitatif jenis quasi eksperimen. Pengolahan data dilakukan dengan menggunakan aplikasi SPSS. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang signifikan antara pendekatan open-ended dan pendekatan kontekstual terhadap kemampuan pemecahan masalah matematis siswa MTs Amaliyah Sunggal. Hal tersebut ditunjukkan dengan nilai sig. (2-tailed) < 0,05 (0,000 < 0,05) maka H0 ditolak. Hasil penelitian ini menunjukkan bahwa penerapan hipotesis alternatif (Ha) menunjukkan adanya pengaruh dari pendekatan open-ended dan pendekatan kontekstual terhadap kemampuan pemecahan masalah matematis siswa, namun menolak hipotesis nol (H0) menunjukkan bahwa tidak terdapat pengaruh. ABSTRACT This study was conducted to determine whether there is an influence of the open-ended approach and the contextual approach on the mathematical problem-solving abilities of students in class VII MTs Amaliyah Sunggal. This study is a quantitative study of the quasi-experimental type. Data processing was carried out using the SPSS application. The results of the study indicate that there is a significant influence between the open-ended approach and the contextual approach on the mathematical problem-solving abilities of students at MTs Amaliyah Sunggal. This is indicated by the sig. value. (2-tailed) <0.05 (0.000 <0.05) then H0 is rejected. The results of this study indicate that the application of the alternative hypothesis (Ha) shows that there is an influence of the open-ended approach and the contextual approach on students' mathematical problem-solving abilities, but rejecting the null hypothesis (H0) indicates that there is no influence.
Co-Authors Agustin, Uni Agustina Rangkuti Aminda Tri Handayani Ammamiarihta Ammamiarihta Andini, Fadhila Andini, Fadhila Andini Aprilla Putri Aqfi, Farizi Arya Impun Diapari Lubis Asrul Asrul Atika Nadila Aulia, Raodhatus Anggi Ayu Lestari Batubara, Ana Uzla Chairina Chairina Cindy Kawilda Hasibuan Debi Anggitasyah Dede Ibrahim Muthawali Deva Rezky Ramadhani Dian Fadila S. Dinda Dinda Durriah Hasibuan Eka Yusnita Endi Zunaedy Pasaribu Eryanti Lisma Eryanti Lisma Fahriza Irfansyah Febrianti, Zelika Hamidah Nasution Harleni, Harleni Hartika Harahap, Afifah Hasratuddin, Hasratuddin Hendra Cipta Hetty Elfina Hidayah Nasution, Hijrah Himatun Khoiriyah Hizmi Wardani Intan Irfanilia Irfansyah, Fahriza Irham Habibi Harahap Irham Habibi Harahap Ismail Husein, Ismail Izwita Dewi Khaila Afsari Khoiriyah, Himatun Lisma, Eryanti Lisma, Eryanti M. Fauzan Zannurrain Muhammad Ridwan Nenna Isya Syaputri Nova Riani Nur Rohimah Nurhalizah, Siti Nurjannah Nurjannah Panjaitan, Syarifah Utari Poppy Andriani Pranata, Anang Putri Wardani Queenty Dhea Haura Br Sitepu R Maisaroh Rezykiyah Siregar Rahmadhani Rahmadhani Rahmadhani, Rahmadhani Raidhatul Ilmi Rakhmawati, Fibri Ramadhani, Cahya Dwi Rangkuti, Robiatul Adawiyah Rima Aprilia Rima Aprilia Rina Widyasari Rizki Hannum Rizkina, Manisyah Roshihan Mawazzi Lubis Rusi Ulfa Hasanah Sarah, Henny May Silvia Harleni Sinaga, Bornok Siregar, R. Maisaroh Rezekiyah Siti Maysarah Siti Nurhaliza Lubis Sofia, Nur Suci Dahlya Narpila, Suci Dahlya Sutarman Sutarman Sutarman Syafrida Laylani Harahap Syahputri, Ziana Widyasari, Rina Winanda Marito Yeni, Yetri Yulia Anita Siregar Yunisa, Fahira Audri Zakaria Alfikri Sirait Zulaika, Zulaika