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All Journal Jupiter Paradikma: Jurnal Pendidikan Matematika Jurnal Daya Matematis AL ISHLAH Jurnal Pendidikan BAREKENG: Jurnal Ilmu Matematika dan Terapan AXIOM : Jurnal Pendidikan dan Matematika Prima: Jurnal Pendidikan Matematika Jurnal Kridatama Sains dan Teknologi Jambura Journal of Biomathematics (JJBM) Mosharafa: Jurnal Pendidikan Matematika Griya Journal of Mathematics Education and Application Jurnal SAINTIKOM (Jurnal Sains Manajemen Informatika dan Komputer) MATHunesa: Jurnal Ilmiah Matematika Innovative: Journal Of Social Science Research Tekmulogi: Jurnal Pengabdian Masyarakat Journal of Mathematics, Computation and Statistics (JMATHCOS)
Yulita Molliq Rangkuti
Department of Mathematics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Sosialisasi dan pelatihan pemasaran digital dan pencatatan keuangan secara sederhana pada UMKM di Desa Tanjung Sari Rangkuti, Yulita Molliq; Karo Karo, Ichwanul Muslim; Ahyar, Khoirul; Wibowo, Adinda; Haraha, Melyana; Natasya, Amanda; Rahayu, Fitri; Mutiara Sihaloho, Laura Adelia; Anggraini, Nisa Putri
TEKMULOGI: Jurnal Pengabdian Masyarakat Vol 4, No 1 (2024): Mei 2024
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/tmg.v4i1.68402

Abstract

The development of the digital era encourages business actors to be able to adjust to the times. Currently, there are still many micro, small and medium enterprises (MSMEs) that do not understand digital marketing in developing their business, resulting in going out of business.  Training and mentoring efforts are needed to help MSME entrepreneurs, especially in rural areas, to survive. Tanjung Sari Village, Batang Kuis Subdistrict, North Sumatra has three active MSMEs, Mrs. Nining's MSME with tempeh products, Uban Fiber Decoration MSME, and Keset Kaki. The three MSMEs have limited digital marketing knowledge. This activity aims to train digital marketing for these MSME entrepreneurs and assist them in simple financial accounting. Activities include surveys, socialization and training and evaluation. Training activities include digital marketing and training in making simple financial bookkeeping. The series of activities received positive responses and community satisfaction and are expected to help MSME players survive in the midst of digital marketing trends and support MSME players in developing their businesses in the future.
Pengembangan Website Dengan Algoritma K-Nearest Neighbor (KNN ) Dalam Klasifikasi Perkembangan Prestasi Siswa Terhadap Hasil Belajar (Studi Kasus SD Negeri 107396 Paluh Merbau) Siburian, Rulli Prasetio Bane; Refisis, Nice Rejoice; Rangkuti, Yulita Molliq; Napitupulu, Elvis; AI Idrus, Said Iskandar
Innovative: Journal Of Social Science Research Vol. 4 No. 5 (2024): Innovative: Journal Of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/innovative.v4i5.12832

Abstract

Pemahaman perkembangan intelektual anak di SD sangat penting sebagai acuan pendidikan. SD Negeri 107396 Paluh Merbau, yang masih menggunakan metode manual untuk mengklasifikasikan nilai siswa, menjadi tempat ideal untuk penelitian ini. Tujuan penelitian adalah menganalisis efektivitas algoritma K-Nearest Neighbor (KNN) dalam klasifikasi perkembangan siswa berdasarkan hasil belajar dan membangun website sebagai platform pengumpulan data dan implementasi KNN. Prestasi siswa diukur melalui nilai ujian semester, ujian harian, tugas, sikap, dan absensi. Data dikumpulkan secara dokumenter dan dianalisis dengan mengurutkan jarak data uji ke data latih dari yang terkecil hingga terbesar, menggunakan k=1 hingga k=10. Hasil klasifikasi mayoritas menunjukkan prestasi Rafa Rifa'i berada di kategori kelas 0 (di bawah rata-rata). Penelitian ini menunjukkan bahwa algoritma KNN efektif dalam klasifikasi prestasi siswa, memberikan wawasan untuk meningkatkan strategi pembelajaran.
Spasial Clustering Untuk Memetakan Transfusi Darah Berbasis Website Fitria, Nur Anisa; Rangkuti, Yulita Molliq; Karo, Ichwanul Muslim Karo
JUPITER (Jurnal Penelitian Ilmu dan Teknologi Komputer) Vol 16 No 1 (2024): Jurnal Penelitian Ilmu dan Teknologi Komputer (JUPITER)
Publisher : Teknik Komputer Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10556605

Abstract

One of the hospital needs is the availability of blood stock. Information on blood stocks in hospitals and supporting agencies is very necessary as demand continues to increase. This research aims to develop a Geographic Information System (GIS) using the K-Medoids method for mapping blood transfusions in North Sumatra. The results of Clustering Calculations using K-Medoids obtained the following results: The first group consists of RSUD dr. RM Djoelham Binjai, H. Adam Malik Regional Hospital Medan, Pringadi Regional Hospital Medan City, Deli Serdang Regional Hospital, Sultan Sulaiman Syarif Regional Hospital, Dr. Hardianus Sinaga, Batu Bara Regional Hospital, Haji Abdul Manan Simatupang Regional Hospital, Salak Regional Hospital. consisting of UDD: PMI Medan City, PMI Deli Serdang Regency, PMI Batu Bara Regency, UDD PMI Labuhan Batu. The second group consists of Tanjung Pura Regional Hospital, Dr. H. Pane Group, Sidikalang Regional Hospital, Porsea Regional Hospital, Dolok Sanggul Regional Hospital, dr.FL Regional Hospital. Tobing Sibolga, Pandan Regional Hospital, South Tapanuli Regency Regional Hospital, Pasambungan Regional Hospital. consisting of UDD: PMI Pematang Siantar City, PMI Tebing Tinggi City, PMI Asahan, PMI Labuhan Batu Utara, PMI South Tapanuli Regency, PMI Mandailing Natal. The results of the clustering test using the Silhoutte index obtained a value of 0.5457267923095698
Sistem Informasi Penjadwalan Jam Kerja Karyawan Pabrik Gula II Kwala Madu Menggunakan Algoritma PSO: Sistem Informasi Penjadwalan Jam Kerja Karyawan Pabrik Gula II Kwala Madu Menggunakan Algoritma PSO Kokod, Mario Maysan; Rangkuti, Yulita Molliq; Perdana, Adidtya
Jurnal SAINTIKOM (Jurnal Sains Manajemen Informatika dan Komputer) Vol 23 No 2 (2024): Agustus 2024
Publisher : PRPM STMIK TRIGUNA DHARMA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53513/jis.v23i2.9626

Abstract

Penjadwalan karyawan merupakan hal yang penting di dunia industri, karena semua kegiatan produksi bergantung pada jadwal yang disediakan, sehingga harus disusun dengan benar dan diperbaiki pada setiap awal periode produksi, sehingga nantinya tidak mengganggu aktifitas jam kerja karyawan. Untuk menyelesaikan masalah tersebut digunakan algoritma Particle Swarm Optimization (PSO). Algoritma ini dapat memecahkan masalah dengan membentuk partikel- partikel pada populasi awal secara acak, mengevaluasi nilai fitness, dan memperbarui velocity serta posisi dari partikel. Hal ini bertujuan untuk memecahkan permasalahan yang ditinjau dari fungsi fitness setiap partikel. Dari hasil pengujian, aplikasi penjadwalan jam kerja meggunakan algoritma PSO mampu menghasilkan jadwal karyawan yang efektif yang mencakup jam dimulainya shift hingga stasiun kerja masing-masing.
Validity of Adobe After Effect Assisted Learning Media Based on Realistic Mathematics Education for Primary Schools in Medan Landong, Ahmad; Rangkuti, Yulita Molliq
AL-ISHLAH: Jurnal Pendidikan Vol 16, No 3 (2024): AL-ISHLAH: JURNAL PENDIDIKAN
Publisher : STAI Hubbulwathan Duri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35445/alishlah.v16i3.4711

Abstract

Mathematics learning is made up of interconnected concepts and materials, therefore understanding the fundamentals is critical. The purpose of this study is to assess the validity of developing mathematics learning medium utilizing animated videos. Adobe After Effects (AAE) is based on Realistic Mathematics Education (RME) for elementary school students in Medan. This study and development of learning material was conducted utilizing research and development procedures (RD). The ADDIE model has been adapted, and only the analysis, design, and development phases have been carried out in this research. The data gathering approach consisted of observation, interviews, questionnaires, and documentation based on the validation results of two media experts and three teachers (material experts) from three schools. The data analysis technique employed is to convert qualitative data to quantitative data. The Material Expert validity test yielded good findings, with an average score of 3 out of a possible 4 points. The media expert validity test yielded a good standard, with a mean score of 3.20 and a maximum value of 4. It was concluded that the results of the animation video mathematics learning media validation test assisted by AAE based on RME were good for use in learning at school.
Implementasi Partitioning Around Medoids Pada Visualisasi Penyebaran Penyakit DBD di Sumatera Utara Fadillah, Wahyu Nur; Rangkuti, Yulita Molliq; Karo, Ichwanul Muslim
Journal of Mathematics, Computations and Statistics Vol. 6 No. 2 (2023): Volume 06 Nomor 02 (Oktober 2023)
Publisher : Jurusan Matematika FMIPA UNM

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

Abstract

This research aims to develop a Geographic Information System (GIS) using the PartitioningAround Medoids (PAM) method in mapping dengue hemorrhagic fever (DHF) cases in North SumatraProvince. DHF has symptoms of high fever, bleeding, and a high mortality rate if not treated quickly.Therefore, mapping DHF cases is very important in efforts to tackle and prevent this disease. The PAMmethod was used in this study to cluster the DHF case data based on similar characteristics. The firstcluster consists of 18 districts/municipalities is a low cluster, the second cluster consists of 3districts/municipalities is a high cluster, and the third cluster consists of 3 districts/municipalities is amedium cluster. The implementation of PAM is done by using the Minkwoski distance calculation methodwhere the application of the distance will be tested with the Silhouette Index on several numbers of clusters.The best number of clusters for PAM implementation is 3 clusters with a Silhouette Index value of 0.5275.
Penggunaan Analisis Biplot dalam Pengelompokan Kabupaten/Kota di Provinsi Sulawesi Selatan Berdasarkan Indikator Kesejahteraan Masyarakat Rangkuti, Yulita Molliq; Landong, Ahmad; Tarigan, Dewan Dinata
Journal of Mathematics, Computations and Statistics Vol. 6 No. 2 (2023): Volume 06 Nomor 02 (Oktober 2023)
Publisher : Jurusan Matematika FMIPA UNM

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

Abstract

Fixed free beam is one of the components that are most often used as raw materials for furnitureand building construction. The use of wooden beams is inseparable from several important issues that mustbe taken into account, including stiffness, strength, stability, and flexibility. The problem of free vibrationthat occurs in wooden beams must also be taken into account. All systems that have mass and elasticity canexperience free vibrations or vibrations that occur without external stimulation. This free vibration occurswhen the system on the object oscillates due to the work of the forces that exist in the system itself (inherent).The free vibration of the wooden beams must be overcome by damping, so that it does not seriously affectthe structure of the strength, stability, and flexibility of the wooden beams. Damping can be done by lookingfor free vibration points or vibration mode shapes on fixed free beams. One approach that can be used tofind the mode shapes is a numerical approach using the Reyleigh-Ritz method. The methodology used isthe development of a python script to find free vibration modes on the beam. In this article, the beam with a length of 0.5 meters and a thickness of 2.25 × 10^−4 meters is selected as a simulation model.
The Effect of Problem Based Learning Model on Improving Mathematical Critical Thinking Abilities and Students' Learning Independence at MAN 1 Medan, Indonesia Siregar, Ahmad Rifai; Hasratuddin, Hasratuddin; Rangkuti, Yulita Molliq; Londong, Ahmad; Siregar, Julya Syahleni; Siregar, Fadhillah Rahma
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 12, No 3 (2024): Desember
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jdm.v12i3.70200

Abstract

This study investigated the effectiveness of Problem Based Learning (PBL) compared to the Traditional Learning Model in mathematics education, focusing on two key aspects: students' mathematical critical thinking skills and learning independence. The research examined whether PBL yielded better results than traditional methods in enhancing these capabilities, while also analyzing potential interactions between learning approaches and students' initial mathematical abilities. The study was conducted with a sample of 60 tenth-grade students from MAN 1 Medan, drawn from classes X-9 and X-6, who were divided into experimental and control groups. Using mathematical critical thinking skills assessments and a learning independence scale, data were analyzed through two-way ANOVA. The results demonstrated that the PBL model was significantly more effective than the Traditional Learning Model in improving both students' mathematical critical thinking skills and learning independence. However, no significant interactions were found between learning approaches and students' initial mathematical abilities in either the development of critical thinking skills or learning independence. These findings strongly suggest that Problem Based Learning should be considered as an effective instructional strategy for educators seeking to enhance their students' mathematical critical thinking skills and foster greater learning independence in the classroom.
DEVELOPMENT OF PBL-BASED FLIPBOOK TEACHING MATERIALS WITH SOUTHEAST ACEH CULTURAL NUANCES TO IMPROVE PROBLEM SOLVING AND CRITICAL THINKING SKILLS OF SMPN 4 LAWE SIGALA-GALA STUDENTS Silvi, Meutia; Armanto, Dian; Rangkuti, Yulita Molliq
Prima: Jurnal Pendidikan Matematika Vol 9, No 1 (2025): PRIMA : Jurnal Pendidikan Matematika
Publisher : FKIP Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/prima.v9i1.12711

Abstract

Tujuan penelitian ini adalah: 1) Meningkatkan kemampuan pemecahan masalah siswa melalui bahan ajar flipbook berbasis PBL bernuansa budaya Aceh Tenggara yang dikembangkan; 2) Meningkatkan kemampuan berpikir kritis siswa melalui bahan ajar yang serupa; 3) Mengetahui keandalan, kegunaan, dan efektivitas bahan ajar flipbook berbasis PBL bernuansa budaya yang diciptakan untuk membantu mahasiswa menjadi lebih terampil dalam memecahkan masalah dan berpikir kritis; Penelitian ini merupakan penelitian pengembangan yang menggabungkan pembelajaran berbasis PBL dengan paradigma pengembangan ADDIE. Berdasarkan hasil uji coba lapangan, diperoleh hasil sebagai berikut: 1) Peningkatan keterampilan pemecahan masalah melalui bahan ajar flipbook berbasis PBL bernuansa budaya Aceh Tenggara, yang dibuktikan dengan nilai N-gain uji coba lapangan sebesar 0,70 yang termasuk dalam kategori "sedang"; 2) Peningkatan kemampuan berpikir kritis melalui bahan ajar flipbook berbasis PBL bernuansa budaya Aceh Tenggara, dibuktikan dengan nilai N-gain dari uji coba lapangan sebesar 0,67 yang termasuk dalam kategori "sedang"; dan 3) bahan ajar flipbook berbasis budaya Jawa telah berhasil dikembangkan untuk meningkatkan pemahaman siswa tentang konsep matematika dan motivasi belajar, serta telah memenuhi persyaratan valid, bermanfaat, dan efektif.
THE EFFECT OF PROBLEM BASED LEARNING MODEL ON IMPROVING MATHEMATICAL CRITICAL THINKING ABILITY AND STUDENT LEARNING INDEPENDENCE IN MAN 1 MEDAN Siregar, Ahmad Rifai; Hasratuddin, Hasratuddin; Rangkuti, Yulita Molliq; Landong, Ahmad; Siregar, Julya Syahleni; Siregar, Fadhillah Rahma
Prima: Jurnal Pendidikan Matematika Vol 9, No 1 (2025): PRIMA : Jurnal Pendidikan Matematika
Publisher : FKIP Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/prima.v9i1.12781

Abstract

The objectives of this research were to determine: (1) the effect of the Problem Based Learning learning model is better than the Ordinary Learning Model on improving students' critical mathematical thinking skills; (2) the interaction between learning and students' initial mathematical abilities on improving students' critical mathematical thinking skills; (3) the effect of the Problem Based Learning learning model is better than the Ordinary Learning Model on improving students' learning independence; (4) the interaction between learning and students' initial mathematical abilities on improving students' learning independence. The population in this study consisted of all tenth-grade students at MAN 1 Medan, and the sample comprised 60 students from classes X-9 and X-6, divided into experimental and control groups. The instruments used included a mathematical critical thinking skills test and a learning independence scale. Data were analyzed using two-way ANOVA. Based on the analysis, the following results were obtained: (1) The Problem Based Learning learning model has a better effect than the ordinary learning model in improving students' critical mathematical thinking skills; (2) there is no interaction between learning and students' initial mathematical abilities on improving students' critical mathematical thinking skills; (3) The Problem Based Learning learning model has a better influence than the ordinary learning model in increasing students' learning independence; (4) there is no interaction between learning and students' initial mathematical abilities towards increasing students' learning independence. Based on the results of this study, it is suggested that learning with problem based learning be used as an alternative for teachers to increase students' critical mathematical thinking skills and learning independence.
Co-Authors Adidtya Perdana, Adidtya Ahmad Landong Ahmad Rifai Siregar, Ahmad Rifai Ahyar, Khoirul Alkhasannah, Riani Anggraini, Nisa Putri Arnita Arnita Dian Armanto DIdi Febrian Dona Fitriawan Elvis Napitupulu, Elvis Erlinawaty Simanjuntak, Erlinawaty Fadillah, Wahyu Nur Fauzi, KMS. Amin Felicia Eldora Firmansyah Firmansyah Fitri Rahayu Fitria, Nur Anisa Furqoni, Mizta Dwi Hafizah Gultom, Ledy Meva Tiurma Haraha, Melyana Harahap, Muhammad Abarorya Hasratuddin Hasratuddin Ichwanul Muslim Karo Karo Insan Taufik Kana Saputra S Karo, Ichwanul Karo Khoiriyati Azmi Kokod, Mario Maysan Landong, Ahmad Londong, Ahmad Lubis, Mufida Azza Iskandar MANSUR AS Mutiara Sihaloho, Laura Adelia Natasya, Amanda Nur Hafni Nurfadilah Siregar Nurhasanah Siregar . Refisis, Nice Rejoice Said . Iskandar Sianturi, Josua Siburian, Rulli Prasetio Bane Sihite, Esra Kristiani Silvi, Meutia Simanjuntak, Christina N simorangkir, risna Sinaga, Marlina Setia Siregar, Fadhillah Rahma Siregar, Julya Syahleni Tarigan, Dewan Dinata Tarigan, Yosua Yosephine Waminton Rajagukguk Wibowo, Adinda Zulfahmi Indra, Zulfahmi