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OPTIMASI KEUNTUNGAN USAHA TERNAK AYAM RAS BROILER DENGAN PROGRAM LINEAR: STUDI KASUS PADA USAHA TERNAK AYAM RAS BROILER MILIK BAPAK HUMALA PONTAS DI DESA BATUGANA Suhaimi, Syech; Afnaria, Afnaria; Sari, Rina Filia; Marlina, Wenni; Usna, Wilia
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.10250

This research is to determine optimal profits in the Humala Pontas broiler chicken farming business by using linear programming, especially the simplex method, to solve this problem. The software used is POM-QM. The results of this research show that there is an increase in profits obtained if you apply a linear program in the feed management process. The optimal profit obtained by implementing a linear program is Rp 86,460,940.00 for one harvest. The profit so far obtained by breeders is Rp. 84. 200,000.00. There is a profit difference of Rp. 2,260,940.00 by implementing a linear program in the feed and medicine management process.

PENGEMBANGAN MODUL PEMBELAJARAN MATEMATIKA BERBASIS PROJECT BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS SISWA DI MTS AL-WASHLIYAH SIMPANG GAMBUS Wati, Isma; Afnaria, Afnaria; Syahlan, Syahlan
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 8, No 2 (2023): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v8i2.289-294

Teachers are provided with the resources they need to incorporate project-based learning into their lesson plans through the Project Based Learning (PjBL) learning paradigm. This study is based on the observation that teachers prefer printed modules over display information because they are more visually appealing. As a result, students do not want to participate in the learning process. There are currently no opportunities for students to practice critical thinking or improve their ability to articulate mathematical ideas in this curriculum. The purpose of this study was to develop a Project Based Learning (PjBL) mathematics learning module and improve students' critical thinking skills at MTs Al-Washliyah Simpang Gambus. The paradigm used to create educational resources is called the 3-D stage of Thiagarajan Development, which stands for Define, Design, and Development. Residents of MTs Al-Washliyah Simpang Gambus became study participants. Students in class VIII A and VIII B, totaling 30 and 26 students, were used as the research sample. based on the results of the validation process carried out by six validators and producing an average score of 4.44 in the very good category. The practicality test results collected through a student response questionnaire obtained an average score of 82.7 with good criteria. With an average N-Gain of 0.71, students' critical thinking skills meet high standards for test results indicating test effectiveness.

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK BERBASIS REALISTIC MATHEMATICS EDUCATION DI MTS NURUL IKHWAN TANJUNG MORAWA Asyikin, Ainur; Afnaria, Afnaria; Octariani, Dhia
Eksakta : Jurnal Penelitian dan Pembelajaran MIPA Vol 8, No 2 (2023): Eksakta : Jurnal Penelitian dan Pembelajaran MIPA
Publisher : Fakultas Keguruan Dan Ilmu Pendidikan, UM-Tapsel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/eksakta.v8i2.295-299

Realistic Mathematics Education (RME) is learning mathematics using an approach to everyday problems. Based on the problems in the LKPD used by the teacher, it has not delivered contextual problems that have not provided motivation for students to develop their ideas and experiences. This development research can produce Student Worksheets on the Material of Two Variable Linear Equation Systems. By using the Thiagarajan model which is modified into three stages (Define, Design, Development). This study aims to develop student worksheets based on Realistic Mathematics Education at MTS Nurul Ikhwan Tg. Morawa. The sample is 30 students of class VIII. The research instruments were validation questionnaires, student response questionnaires and tests. Based on several experts, it was obtained as many as 4 people by assessing the assessment with a score of 4.52 in the good category. The practicality results were obtained through a student response questionnaire with a score of 84.8% in the "very practical" category. The results of the effectiveness test were obtained through a given test with a score of 86.7% in the Very Good category.

Integer Linear Programming for Patchwork Production Planning Optimization with Demand Uncertainty Afnaria, Afnaria; Sari, Rina Filia; Octariani, Dhia; Rambe, Isnaini Halimah
ZERO: Jurnal Sains, Matematika dan Terapan Vol 9, No 1 (2025): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v9i1.24349

This study develops an Integer Linear Programming (ILP) model to optimize monthly production planning for handcrafted patchwork MSMEs in Medan, Indonesia. The model incorporates key operational constraints, including production time, material and handling costs, labor, electricity, capital limits, and uncertain demand. Demand uncertainty is modeled deterministically using upper and lower bounds derived from historical field data. The objective function maximizes total profit while ensuring resource feasibility. A real-world case study involving five products across five artisans is presented, resulting in a maximum profit of IDR 12,469,900. The model is implemented using LINGO 18.0 and validated through sensitivity analyses. Results show that a 50% reduction in demand may reduce profit by up to 33.8%, while an increase in lead time can lower profit by 17.1%. These findings demonstrate the model’s robustness and its potential to serve as a decision-support tool for MSMEs facing volatile market conditions and operational constraints.

MODEL MATEMATIKA UNTUK PENUGASAN EFISIEN MAHASISWA PKL (PRAKTEK KERJA LAPANGAN) MENGGUNAKAN METODE HUNGARIAN Panjaitan, Arie Candra; Octariani, Dhia; Afnaria, Afnaria
Asimetris: Jurnal Pendidikan Matematika dan Sains Vol 6 No 1 (2025): Asimetris: Jurnal Pendidikan Matematika dan Sains
Publisher : Pendidikan Matematika Universitas Almuslim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51179/asimetris.v6i1.3343

Penelitian ini bertujuan untuk mengembangkan dan mengimplementasikan model penugasan mahasiswa Praktek Kerja Lapangan (PKL) berbasis algoritma Hungarian guna meningkatkan efisiensi, keadilan, dan transparansi dalam proses penempatan ke mitra industri. Permasalahan penempatan selama ini yang bersifat subjektif dan administratif dianggap kurang optimal dan tidak selaras dengan kebutuhan dunia industri. Penelitian menggunakan pendekatan kuantitatif dengan merumuskan assignment problem dalam bentuk matriks biaya, berdasarkan tiga indikator utama: kecocokan kompetensi, preferensi lokasi, dan jarak geografis. Algoritma Hungarian diaplikasikan untuk memperoleh solusi optimal dengan biaya penugasan minimum.Hasil penelitian menunjukkan bahwa model penugasan yang dikembangkan berhasil meningkatkan efisiensi penempatan mahasiswa secara signifikan dibandingkan metode konvensional. Evaluasi menunjukkan peningkatan efisiensi biaya sebesar 18%, tingkat kecocokan sebesar 25%, serta peningkatan kepuasan mahasiswa dan mitra masing-masing sebesar 20% dan 19%. Matriks biaya yang disusun berdasarkan indikator terukur memberikan dasar objektif dalam proses penempatan, dan algoritma Hungarian mampu menyelesaikan kompleksitas penugasan satu-satu dengan hasil yang optimal. Simpulan dari penelitian ini adalah bahwa metode Hungarian merupakan pendekatan matematis yang tepat, praktis, dan layak diadopsi oleh institusi pendidikan vokasi sebagai sistem penugasan berbasis data dalam rangka mendukung keberhasilan program PKL dan memperkuat kemitraan dengan dunia industri.

Training on Creating High-Value Patchwork Fabric Craft Products for PKK Women as an Application of Realistic Mathematics Education Afnaria; Syahputra, MR.; Br. Sembiring, Metrilitna; Rambe, Isnaini Halimah; Oktariani, Dhia
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 9 No. 2 (2024): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v9i2.19053

This activity is implemented to apply the theories of plane geometry in making patchwork fabric crafts of high values and at the same time provide training for the members of PKK in Bingkat Village, Pegajahan District, Serdang Bedagai Regency. In serving the purpose, Realistic Mathematics Education may be adopted as an approach to be used to help participants comprehend the notion mathematics using real-world circumstances. In this case, the square theory is applied, giving the precise cloth cutting and sewing processes for good outputs that look nice. The seminar was scheduled to take one day, namely August 20, 2024, with the members of PKK who are in desperate need of a new business alternative because sales at Pasar Bengkel are falling. The training methods consisted of teaching the Trainees the skills to produce three-dimensional flowers from patchwork fabric and how to create Social Media Marketing of the products. Results from this training showed an increase in the N-Gain of participants' product creation skills at 0.75 and for the digital marketing, it was 0.74. Such an activity has resulted in three-dimensional beautiful flowers items and a better understanding of marketing methods among the participants. It was such an initiative that provided concrete solutions to the challenges of the partners and thus could make a very significant contribution toward local economic development. More training and mentoring are being envisioned to make sure that participants will be able to apply independently the knowledge and skills they have learned.

MODEL MATEMATIKA UNTUK PENUGASAN EFISIEN MAHASISWA PKL (PRAKTEK KERJA LAPANGAN) MENGGUNAKAN METODE HUNGARIAN Panjaitan, Arie Candra; Octariani, Dhia; Afnaria, Afnaria
Asimetris: Jurnal Pendidikan Matematika dan Sains Vol. 6 No. 1 (2025): Asimetris: Jurnal Pendidikan Matematika dan Sains
Publisher : Pendidikan Matematika Universitas Almuslim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51179/asimetris.v6i1.3343

Penelitian ini bertujuan untuk mengembangkan dan mengimplementasikan model penugasan mahasiswa Praktek Kerja Lapangan (PKL) berbasis algoritma Hungarian guna meningkatkan efisiensi, keadilan, dan transparansi dalam proses penempatan ke mitra industri. Permasalahan penempatan selama ini yang bersifat subjektif dan administratif dianggap kurang optimal dan tidak selaras dengan kebutuhan dunia industri. Penelitian menggunakan pendekatan kuantitatif dengan merumuskan assignment problem dalam bentuk matriks biaya, berdasarkan tiga indikator utama: kecocokan kompetensi, preferensi lokasi, dan jarak geografis. Algoritma Hungarian diaplikasikan untuk memperoleh solusi optimal dengan biaya penugasan minimum.Hasil penelitian menunjukkan bahwa model penugasan yang dikembangkan berhasil meningkatkan efisiensi penempatan mahasiswa secara signifikan dibandingkan metode konvensional. Evaluasi menunjukkan peningkatan efisiensi biaya sebesar 18%, tingkat kecocokan sebesar 25%, serta peningkatan kepuasan mahasiswa dan mitra masing-masing sebesar 20% dan 19%. Matriks biaya yang disusun berdasarkan indikator terukur memberikan dasar objektif dalam proses penempatan, dan algoritma Hungarian mampu menyelesaikan kompleksitas penugasan satu-satu dengan hasil yang optimal. Simpulan dari penelitian ini adalah bahwa metode Hungarian merupakan pendekatan matematis yang tepat, praktis, dan layak diadopsi oleh institusi pendidikan vokasi sebagai sistem penugasan berbasis data dalam rangka mendukung keberhasilan program PKL dan memperkuat kemitraan dengan dunia industri.

PENGEMBANGAN E-MODUL BERBASIS DISCOVERY LEARNING MENGGUNAKAN SOFTWARE EXE-LEARNING PADA MATERI FUNGSI KELAS X SMA Haloho, Elysha Jefirayani; Azis, Zainal; Afnaria, Afnaria; Syahlan, Syahlan
MES: Journal of Mathematics Education and Science Vol 9, No 2 (2024): Edisi April
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v9i2.9755

The rapid development of science and technology encourages renewal efforts in the utilization of various technological results in the learning process, such as utilizing digital-based learning media. This research aims to produce e-module learning tools based on discovery learning on quadratic function material for class X SMA students that are valid, practical, and effective. The research method used is Research and Development with Thiagarajan 4-D development model: define, design, develop, and disseminate. The subject of this research is the production of e-modules based on the discovery learning model. The object of this research is the students of SMA Negeri 1 Purba, totaling 33 students. The instruments used in this study were validation questionnaires and student responses to the e-modules developed as well as student learning outcomes tests. The results of this study indicate that the e-Module developed has met the requirements of validity and practicality as stated in the results of the questionnaire given. In addition, the e-module developed was also declared effective based on the student learning outcomes test with an average of 78,79% and included in the good category.

SIMULASI PENGENDALIAN PERSEDIAAN ALAT TULIS KANTOR PADA DINAS PERKEBUNAN DAN PETERNAKAN PROVINSI SUMATERA UTARA DENGAN METODE MONTE CARLO Sari, Rina Filia; Aprilia, Rima; Widyasari, Rina; Afnaria, Afnaria; Suhaimi, Syech; Putri, Chindy Aulia
Jurnal Pengabdian Mitra Masyarakat Vol 3, No 2 (2024): Edisi Maret
Publisher : Universitas Islam Sumatear Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/jurpammas.v3i2.9284

In a Government Agency, office stationery supplies are an absolute necessity. The provision of adequate office stationery will facilitate performance. This study aims to predict the demand for office stationery using Monte Carlo Simulation. Monte Carlo is a numerical analysis method that uses random number samples. The data used in this study are primary data in the form of the number of stock items and the number of requests for goods from January to December 2023. The accuracy result using the Monte Carlo method for Year 2024 is 91.78%. This shows that the Monte Carlo method simulation can be used to predict the demand for stationery for the following year.

Development of Learning Materials Based on the MURDER Collaborative Learning Model to Enhance Students’ Conceptual Understanding of Mathematics Rahmayani, Sri; Afnaria, Afnaria; Azis, Zainal
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 5 No. 4 (2025): October - December 2025
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v5i4.2422

The low level of students’ conceptual understanding in mathematics highlights the need for innovative and structured learning approaches. This study aims to develop mathematics learning materials based on the MURDER collaborative learning model (Mood, Understand, Recall, Digest, Expand, and Review) to enhance students’ conceptual understanding. The research employed a Research and Development (R&D) design involving expert validation, limited trials, and classroom implementation to evaluate the validity, practicality, and effectiveness of the developed module. The model helps students recall and comprehend mathematical concepts more effectively, supporting both teaching and learning processes in the classroom. The product was validated by three expert groups. Content validation produced an average score of 88.2%, media validation 92.5%, and language validation 85.5%, with an overall mean of 88.7%, indicating that the module is highly feasible. Practicality testing, based on student response questionnaires, yielded an average score of 82%, classified as highly practical. Effectiveness testing in a Grade 10 science class involving 30 students resulted in a mean score of 83.6%, categorized as highly effective. Furthermore, the N-Gain value of 0.81demonstrates a high improvement in students’ conceptual understanding after using the module. These results confirm that the MURDER-based mathematics learning module is valid, practical, and effective for improving students’ conceptual understanding, particularly in learning the sine and cosine rules. The developed module can serve as a reference for schools and educators seeking to implement collaborative and conceptually oriented mathematics learning.

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