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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 200 Documents
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Pengaruh Model Pembelajaran Problem Based Learning Terhadap Minat Belajar Matematika Siswa Kelas VIII Pondok Pesantren Al-Irsyad TI Bulaan Kamba Silvi Yarda Rahmi; Haida Fitri; Aniswita Aniswita; Pipit Firmanti
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.4954

Abstract

This research is motivated by the problems in class VIII of Al-Irsyad TI Bulaan Kamba Islamic Boarding School that the learning process is still centered on the teacher, lack of student response to mathematics learning, lack of student courage to ask the teacher, students still think mathematics is difficult and scary, lack of interest in learning mathematics, and students are less enthusiastic when participating in mathematics learning. One alternative learning that can be done to overcome these problems is to apply the Problem Based Learning learning model. This study aims to determine the effect of the Problem Based Learning learning model on the interest in learning mathematics of class VIII students of Al Irsyad TI Bulaan Kamba Islamic Boarding School. The hypothesis in this study is "there is a significant effect of the Problem Based Learning learning model on the interest in learning mathematics of class VIII students of Al Irsyad TI Bulaan Kamba Islamic Boarding School". This type of research is a pre-experiment with a one group pretest-posttest research design, the population in this study were all students of class VIII of Al Irsyad TI Bulaan Kamba Islamic Boarding School, the sampling used was Random Sampling, first a normality test, homogeneity test, and average similarity test were carried out on the population data. The sample in this study was class VIII A as the sample class. The instrument in this study was a questionnaire on students' interest in learning mathematics. The data analysis technique used in this study was the paired sample t test. The results obtained from the paired sample t test were t count = 2.81 and t table = 2.05 and sig = 0.0045 at a real level of α = 0.05. From these results it can be concluded that H0 is rejected and H1 is accepted. So it can be concluded that there is a significant influence of the Problem Based Learning learning model on the interest in learning mathematics of class VIII students of Al Irsyad TI Bulaan Kamba Islamic Boarding School.
Pengaruh Model Pembelajaran Kooperatif Tipe Student Teams Achievement Division (STAD)Terhadap Motivasi Belajar dan Kemampuan Pemahaman Konsep Matematika Nova Novita; Tasnim Rahmat; M. Imamuddin; Pipit Firmanti
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.4955

Abstract

This research is based on the background of the problems found in grade IX of SMP N 1 Gunuang Omeh District that the low motivation of students in learning mathematics, this is characterized by students who look lazy in learning and only a few students pay attention when the teacher explains the material. Then, from the results of the students' daily test scores, it was also found that the low ability to understand mathematical concepts of grade IX students at SMP N 1, Gunuang Omeh District. The formulation of the problem in this study is how is the motivation of students to learn in mathematics subjects using the Student Teams Achievement Division (STAD) type cooperative learning model for grade IX at SMP N 1 Gunuang Omeh District for the 2023/2024 Academic Year and whether there is a significant positive influence using the Student Teams Achievement Division (STAD) type cooperative learning model on the ability to understand mathematics concepts of grade IX students at SMP N 1 Kecamatan Gunuang Omeh for the 2023/2024 Academic Year. This type of research is a quasi-experimental experiment with a Randomized Control Group Only Design research design. The population in this study is all grade IX students at SMP N 1, Gunuang Omeh District. Sampling was determined at random first by a normality test, a homogeneity test, and an average similarity test on population data. The sample in this study is class IX-2 as the experimental class and class IX-3 as the control class. The results of the analysis of the student mathematics learning motivation questionnaire data were obtained with a percentage of 72.28% with high motivation criteria and the test of students' ability to understand mathematical concepts was calculated using the t-test obtained tcount = 3.180 and and ttable = 1.672 because tcount > ttable means subtracting H0 and accepting H1 at the real level α=0.05, and by using SPSS26 Sig = 0.003 was obtained which means that sig ≤α with α=0.05.
Perspektif Mahasiswa Jurusan Matematika Kelas Kimia Umum terhadap Pemanfaatan Bunga Telang dan Cuka sebagai Tinta Alami Ramah Lingkungan Dimas Ridho; Tita Juwitaningsih; Nadhira Eka Putri Prayudi; Nabila Mutiara Syifa; Putri Syahbilah; Fitrah Ifandi Hasibuan
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.5014

Abstract

This study aims to analyze the perspectives of mathematics students in general chemistry classes. on the use of butterfly pea flowers (Clitoria ternatea) and vinegar as basic ingredients for making environmentally friendly natural ink. This innovation is expected to be an alternative to the use of chemical inks and to encourage environmental awareness among students. This study uses a descriptive analysis method with data collection through questionnaires distributed to students. The results of the analysis show that most students gave a positive response to the use of butterfly pea flowers and vinegar as natural ink, especially in terms of loss, material safety, and potential application in the campus environment. These findings indicate an opportunity to develop environmentally friendly products based on local wisdom in the world of education.
Penerapan Model Regresi Poisson untuk Prediksi Frekuensi Klaim Asuransi pada Perusahaan Asuransi Jiwa Lathifatul Aulia; Arista Fitri Diana; Agung Ginanjar
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.5204

Abstract

The life insurance industry plays a strategic role in the national financial system, not only as a provider of protection against life risks such as premature death or critical illness, but also as an instrument of long-term fund accumulation. Increased public awareness of the importance of risk protection has driven significant growth in the number of active policies. This condition has a direct impact on the risk exposure of claims that must be carefully managed by insurance companies. One of the main challenges in risk management is to accurately estimate the number of claims in a certain period, to support premium setting, technical reserve planning, and maintain the company's financial stability. This study aims to examine the use of Poisson regression model in estimating the frequency of life insurance claims based on the number of active policies in life insurance company. The data used is simulative and represents an exponential relationship between the number of policies and claims. The model is analyzed using the Maximum Likelihood Estimation (MLE) approach and evaluated through goodness-of-fit indicators such as deviance, Pearson chi-square, log-likelihood, and Mean Squared Error (MSE). The results of the analysis show that the Poisson regression model can capture the significant relationship pattern between the number of active policies and claims, and provide accurate prediction results. Thus, Poisson regression is proven to be a relevant and applicable statistical method in supporting strategic decision-making in insurance companies, especially in the context of data-driven risk management.
Mastery of Essential Mathematics Concepts : How it Enhances Students’ Critical and Creative Thinking Skills Ayu Aristika
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.5256

Abstract

This study is a descriptive and correlational study to investigate students’ mastery of essential mathematics concept and find the connection to their critical and creative thinking. The subjects of the study consisted of 234 junior high school students from various schools in high, average, and low qualities. The results of the study indicated that 1) Students’ mastery of essential mathematics concept are at average level; 2) The difficulties that encountered by the students come from internal factor (themselves), and external factors (teachers, the characteristics of mathematics, schoolmates and the facilities; 3) There is a significant relationship between students’ mastery of essential mathematics concept and their critical thinking; 4) The correlation between the ability to be skilled in essential math concept and their creative thinking is at high level.
Analisis Perbandingan Pengeluaran dan Penghasilan Pedagang Pasar Sukaramai & MMTC dengan Para Penjual Kaki Lima yang Berada Dikawasan Universitas Negeri Medan Putri Maulidina Fadilah; Sudianto Manullang; Angelica Carolina Tambunan; Hanafi Irsyad Pulungan; Lirana Sapriani Gulo; Naomi Febrina Sitompul
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.5422

Abstract

This study aims to examine and compare the expenditure and income patterns between traditional market traders in Sukaramai Market and MMTC with street vendors operating around the State University of Medan (UNIMED). This study is based on the main differences between the two groups, especially related to business legality, sales location, and operational costs, which have the potential to affect business effectiveness and the economic welfare of the actors. The comparative quantitative method was used to collect data through questionnaires and Simple Random Sampling sampling techniques on 45 respondents, consisting of 30 market traders and 15 street vendors. The collected data were then analyzed using statistical inference techniques to obtain accurate and reliable parameter estimates. The results of the study show that market traders have an average income of IDR 9.37 million with expenses of IDR 6.7 million per month, so that the net profit obtained reaches IDR 2.67 million. Meanwhile, street vendors have an average income of IDR 7.2 million and expenses of IDR 5.53 million, so that their net profit is around IDR 1.67 million. Although market traders' expenses are higher, they still get a greater net profit. This study confirms that business location, legality, and management system factors significantly affect the efficiency and economic success of traders. This finding is very relevant as a basis for formulating fair and sustainable policies for empowering the informal sector, especially for small and micro traders in urban areas, in order to optimally improve their economic welfare.
Perbandingan Teori Pembentukan Alam Semesta : Big Bang Vs Steady State dalam Perspektif Kosmografi Muhammad Arif; Elsa Kardiana; Suryana Daulay; Dzuriati’ A Yuni Aceh; Yurdan Sihotang; Tasya Maria Natalia Pangaribuan; Jernih Margaretha Siahaan
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.5536

Abstract

This study aims to compare two main theories in modern cosmology, namely the Big Bang Theory and the Steady State Theory, using a descriptive cosmographic approach. This study is motivated by the lack of deep understanding as well as the limited Indonesian literature discussing the fundamental differences between the two theories. By employing a qualitative method through literature review, this research examines the characteristics, advantages, and limitations of each theory based on the latest scientific evidence and cosmographic perspectives. The analysis results show that the Big Bang Theory has strong support from observational evidence, such as cosmic microwave background radiation (CMB), galaxy redshift, and the distribution of light elements, which reinforces the narrative of the expansion and evolution of the universe. In contrast, the Steady State Theory is considered less relevant due to the absence of observational evidence for the creation of new matter and its inability to explain structure and the dynamics of the universe that are currently observed.
Analisis Mutu Sensorik dan Komposisi Kimia pada Cold Dessert dengan Penambahan Udang Vannamei (Litopeaneus vanname) Luthfiah, Luthfiah; Rahmawati Saleh; Tasir, Tasir; Ernawati Jassin; Jihan Rasyieda
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.5669

Abstract

Dessert as a dessert, which is part of culinary in various cultures. Dessert is not only a dessert, but also reflects creativity and innovation in the culinary field. This study aims to analyze the comparative level of adding vannamei shrimp (Litopeaneus Vanname) to the cold dessert formulation on sensory properties (color, aroma, texture, and taste) and chemical composition (protein content and fat content). The study was conducted experimentally using a Completely Randomized Design (CRD) with three treatments of adding vannamei shrimp, namely 10% (A1), 20% (A2), and 30% (A3). The results of the organoleptic test showed that treatment A1 (10% shrimp addition) gave the best value on all sensory parameters, with an aroma value of 4.3 (like), taste 4.7 (like), texture 4.2 (like), and color 4.2 (like). Chemical analysis showed that treatment A1 produced a protein content of 4.21% and a fat content of 8.46%. The addition of vannamei shrimp to the cold dessert formulation is an attractive taste innovation for consumers. This study concludes that the addition of vannamei shrimp to cold dessert formulations can be an attractive alternative to improve the quality and nutritional value of products, as well as meet the growing needs of consumers.
Implementasi Model PBL untuk Pembelajaran Matematika pada Sekolah Dasar Alisia Zahro’Atul Baroroh; Umi Mahmudah
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 1 (2025): April : 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.v4i1.5671

Abstract

Mathematics learning in elementary schools still faces several challenges, including low student motivation and critical thinking skills. One innovative solution is the implementation of the Problem Based Learning (PBL) model. This study aims to examine the effectiveness of PBL in improving elementary students’ conceptual understanding and critical thinking in mathematics. This research employed a Classroom Action Research (CAR) method conducted in two cycles involving fifth-grade students at [School Name] Elementary School. Data were collected through observations, tests, interviews, and documentation. The results show that the implementation of the PBL model increased student engagement, problem-solving ability, and the average score of conceptual understanding in mathematics. Therefore, PBL is proven to be effective in fostering meaningful learning and promoting higher-order thinking skills. It is recommended that elementary mathematics teachers integrate PBL as a student-centered learning approach.
Pemodelan Matematika dalam Kajian Sistem Antrian pada Counter Kasir Mixue di Jalan Pahlawan Kota Magelang Azziizah Dinda Ammara; Sarnefa Mulya Prastiwi; Rizky Catur Prayogi; Yesi Franita
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 2 (2025): Agustus: 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.v4i2.5720

Abstract

This study uses the Mean Value Analysis (MVA) approach to analyze the queuing system at the Mixue Ice Cream & Tea cashier counter on Jalan Pahlawan in Magelang City. The MVA method was chosen because it can handle general time distributions between arrivals and services. The research was conducted through direct observation and interviews over the course of two days, during which time data was collected on the time between arrivals and customer service. The analysis revealed that the system was not in a steady state, as the arrival rate (0.0122 customers per second) exceeded the service rate (0.0111 customers per second). High service variability (CV = 276.30%) compared to arrival variability (CV = 69.46%) indicates service instability. On average, customers waited 47.08 seconds, and the total time in the system was 137.17 seconds. These results are important because they indicate the need for increased efficiency and standardized services to prevent a decrease in service quality.

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