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Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA)
Published by Pusat Riset dan Inovasi Nasional
ISSN : 28289382     EISSN : 28289390     DOI : https://doi.org/10.55606/jurrimipa.v1i1
Core Subject : Education,
Mathematics
Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam adalah jurnal yang ditujukan untuk publikasi artikel ilmiah yang diterbitkan oleh Pusat riset dan Inovasi Nasional, Universitas Sains dan Teknologi Komputer. Jurnal ini adalah jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam yang bersifat peer-review dan terbuka. Bidang kajian dalam jurnal ini termasuk sub rumpun Ilmu IPA, Ilmu Matematika, Ilmu Kebumian dan Angkasa. Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam menerima artikel dalam bahasa Inggris dan bahasa Indonesia dan diterbitkan 2 kali setahun: April dan Oktober.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 244 Documents
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Penerapan Model Pembelajaran Problem Based Learning Untuk Meminimalisir Kesalahan Belajar Matematika Siswa pada Materi Statistika Kelas XI SMKN 1 Bonepantai Tiara Trivonia Djikilo; Perry Zakaria; Nancy Katili
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 5 No. 1 (2026): April : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v5i1.9224

Abstract

This study aims to investigate the application of the Problem-Based Learning (PBL) model in minimising students’ errors in learning mathematics within the statistics curriculum. The research method employed was Classroom Action Research (CAR). The research was conducted at SMKN 1 Bonepantai during the second semester of the 2024/2025 academic year, with a sample of 25 Year 11 students comprising 11 male and 14 female students. Data collection was carried out through observation and tests of students’ mathematical learning errors. The research consisted of two cycles. The results of the study indicate that the application of the Problem-Based Learning (PBL) model can minimise students’ mathematical learning errors in statistics. In Cycle I, the percentage of conceptual errors was 57%, operational errors 73%, and principle errors 61%. Following improvements to the teaching approach in Cycle II, the percentage of student errors decreased to 50% for conceptual errors, 65% for operational errors, and 51% for principle errors. This represents a reduction of 7% in conceptual errors, 8% in operational errors, and 10% in principle errors. Furthermore, the results of observations of teacher and student activities in Cycle II reached 100%, with ratings of ‘good’ and ‘very good’.
Model Log-Linier 4 Dimensi (Studi Kasus Hubungan Antara Gender, Durasi Tidur, Ekstrakurikuler dan Hasil belajar Siswa SMAN 1 Kualuh Hulu) Maxtulus Junedy Nababan; Gayus Simarmata
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 5 No. 1 (2026): April : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v5i1.9288

Abstract

This study was conducted to determine the best log-linear model describing the relationship between gender, sleep duration, extracurricular activities, and student learning outcomes at SMAN 1 Kualuh Hulu. A log-linear analysis approach was used to identify interaction patterns among the variables and evaluate their contribution to student academic performance. The findings showed that the selected model adequately explained the structure of the observed data. A significant three-way interaction was identified between learning outcomes, sleep duration, and gender. The results indicated that insufficient sleep duration had a negative impact on student learning outcomes, and this effect varied by gender. Female students were found to be more vulnerable to decreased academic performance caused by sleep disturbances compared to male students. Meanwhile, extracurricular activities did not demonstrate a significant direct interaction with learning outcomes. This suggests that participation in extracurricular activities was not a major factor influencing differences in academic achievement among students at SMAN 1 Kualuh Hulu.
Penerapan Program Linear Metode Simpleks untuk Memaksimalkan Keuntungan pada Penjualan UMKM Nerli Khairani; Asni Al Amini; Mhd Fachrizal; Adinda Saputri; Livia Mutianda
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 5 No. 1 (2026): April : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v5i1.9311

Abstract

Micro, Small, and Medium Enterprises (MSMEs) often face challenges in managing production resources, such as limited raw materials and labor time, resulting in suboptimal business profits. This study aims to determine the production combination that can generate maximum profits for culinary MSMEs producing risol and pastel using the simplex linear programming method. The study employed a quantitative descriptive method with a case study approach. Data were obtained through interviews, observations, and documentation of the MSME's daily production activities. The data used included wheat flour raw material usage, production time, output quantity, and profit for each product. The results showed that the optimal production combination was achieved when producing 2.5 risol recipes and 0.5 pastel recipes, with a maximum profit of IDR 252.375 per day. These results demonstrate that the application of the simplex method can help MSMEs optimize the use of production resources more effectively and efficiently, thereby increasing business profits.
Analisis Kesulitan Siswa dalam Mempelajari Materi Bangun Ruang Sisi Datar pada Siswa Kelas VIII SMP Negeri 2 Ponelo Kepulauan
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 5 No. 1 (2026): April : JURRIMIPA: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v5i1.8837

Abstract

This study aims to analyse the difficulties experienced by students in learning about flat-sided three-dimensional shapes. The research method employed is descriptive with a qualitative approach. The data collected in this study were obtained from students’ difficulty tests and interview results. The research subjects were Year 8 pupils at SMP Negeri 2 Ponelo Kepulauan in the 2024/2025 academic year. The interviews were conducted by selecting three questions related to difficulties in learning mathematics, with one student chosen as a respondent to be interviewed on 26 August 2025. The indicators used to assess students’ learning difficulties were: facts, principles, concepts, and operations. The research results indicate that students with the lowest marks demonstrated limitations in mastering all the indicators measured when solving mathematics problems on the topic of flat-sided three-dimensional shapes. During the interview, students with the lowest marks experienced difficulties despite the use of effective teaching methods. This was because they paid insufficient attention to what the teacher was explaining.

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