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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 Berbasis Masalah dengan Pendekatan STEM terhadap Kemampuan Pemecahan Masalah Matematis Siswa Ripaldo Pandiangan; Asrin Lubis
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): 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.v3i1.2518

Abstract

This study aims to determine whether there is an influence of the problem-based learning model (PBL) with a STEM approach on the mathematical problem solving ability of grade VIII students of SMP Negeri 17 Medan. This research was conducted at SMP N 17 Medan T.A 2023/2024. The research method used is a quasi-experimental method. The sample of this study consisted of two classes, namely class VIII-3 as an experimental class taught with a PBL model with a STEM approach and class VIII-4 as a control class taught with conventional models. Based on descriptive statistics and categorization of research results, it was found that the mathematical problem solving ability of experimental class students was 67,74% of students in the high category, 32.26% of other students in the medium category, and no students in the low category. Meanwhile, in the control class, 15,63% of students were in the high level of problem solving ability, 53,13% were in the medium level and 31,24% of students were in the category low category. Thus it can be seen that the mathematical problem solving ability of grade students taught with PBL with a STEM approach is better than conventional learning models. Furthermore, with inferential statistical analysis for the t test, calculated t value = 2,42 and ttable = 1,999623, thus t calculated > t table means that the problem-solving ability of students taught with PBL with a STEM approach is not the same as students who use the learning conventional model. With further analysis, Fcalculated = 5,6847 and F table = 3,998494482, then calculated F > F table so it can be concluded that problem-based learning models with a STEM approach have a significant effect on students' mathematical problem solving abilities.
Penerapan Model Kooperatif Tipe Tps Untuk Meningkatkan Kepercayaan Diri Siswa dan Kemampuan Komunikasi Matematis di SMPN 5 Percut Sei Tuan Veronika Veronika; Zul Amry
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): 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.v3i1.2519

Abstract

The objective of this research is to investigate the potential impact of implementing the TPS cooperative learning model on enhancing the self-confidence and mathematics communication abilities of seventh-grade students at SMP Negeri 5 Percut Sei Tuan. The specific focus will be on the Set content. This study used a class action research design, consisting of two distinct cycles. Each iteration comprises two meetings. The participants in this research consisted of 28 students from class VII-8 of SMP Negeri 5 Percut Sei Tuan. The primary focus of this study is to enhance students' self-confidence and mathematical communication abilities by using the TPS cooperative learning model on Set material at SMP Negeri 5 Percut Sei Tuan during the academic year 2022/2023. Based on the findings derived from the analysis of the data, it was observed that the mean score for students' initial self-confidence was 53.61. Additionally, the mean test score for students' initial communication skills was found to be 44.92. Among the participants, a total of 3 students (13.04%) demonstrated mastery in this area, while the remaining 20 students (86.95%) had not yet achieved mastery. The learning process in cycle I was conducted using the TPS model. As a result, the average score of student confidence increased to 62.14, while the average score of the mathematical communication ability test increased to 55.80. Out of the total number of students, 8 students (34.78%) reached the completion criteria, while 15 students (65.21%) did not reach the completion criteria. In the second cycle, there was an observed increase in student performance. The average score for student confidence was recorded as 76.29, while the average score for the mathematical communication ability test was 75.97. Out of the total number of students, 19 students (82.60%) achieved completeness in the test, while 4 students (17.40%) did not reach completeness. The self-confidence questionnaire and mathematical communication skills exam administered in cycle II yielded results indicating a satisfactory level of student proficiency.
Penerapan Model Pembelajaran Open Ended Untuk Meningkatkan Kemampuan Berpikir Kreatif dan Penalaran Matematis Siswa Michelle Ivana Filbertha; Sahat Saragih
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): 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.v3i1.2527

Abstract

This research aims to find out how to improve the creative thinking and mathematical reasoning abilities of class after implementing learning based on the open ended learning model. This research is Classroom Action Research (PTK). Data was collected through tests of students' creative thinking and mathematical reasoning abilities at the end of each cycle and observation sheets of teacher and student activities. The results of the research show that: (1) The increase in students' creative thinking and mathematical reasoning abilities is classified as a medium improvement criterion with the respective average N-gain values being 0.53 and 0.49. And the percentage of classical completion of students' creative thinking abilities after implementing cycle I increased to 47.22% and after implementing cycle II actions increased to 86.11%. As well as the percentage of classical completeness of students' mathematical reasoning abilities after implementing cycle I actions increased to 47.22% and after implementing cycle II actions increased to 91.67%; (2) The process of students' answers in completing tests on students' creative thinking abilities and mathematical reasoning can be said to be good.
Penerapan Model Problem Based Learning untuk Meningkatkan Kemampuan Pemecahan Masalah Matematis Siswa di Kelas VIII – A SMP Negeri 1 Stabat Radika Ananda; Zul Amry
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): 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.v3i1.2543

Abstract

This study aims to determine whether applying the Problem Based Learning model can improve the mathematical problem solving ability of students of class VIII-A SMP Negeri 1 Stabat on SPLDV. This research is a class action research conducted in two cycles. Each cycle consists of 2 meetings. The subjects in this study were students of class VIII-A SMP Negeri 1 Stabat totalling 30 students. The object of this research is the improvement of students' mathematical problem solving ability through the application of the Problem Based Learning learning model on SPLDV material at SMP Negeri 1 Stabat in the 2023/2024 school year. Based on the results of data analysis, the average initial test score was 47.11 with the number of students who reached mastery as many as 4 students (13.33%) and students who had not reached mastery as many as 26 students (86.67%). Then learning was carried out with the Problem Based Learning learning model in cycle I and there was an increase in the problem solving ability test with an average value of 63.44 with 19 students or as many as (63.33%). Then students who have not reached completeness are 11 students or as many as (36.67%). Then in cycle II there was an increase with the average value of the student problem solving ability test being 84.11, with a total completeness of 26 students or as many as (86.67%) and the number of students who had not reached completeness was 4 students or as many as (13.33%). The level of student completeness of the problem solving ability test given in cycle II reached the good category, therefore it can be said that learning has been achieved. Thus it can be said that the class has reached more than 85% of students who have been completed to solve problems. So it can be concluded that using the Problem Based Learning model can improve students' mathematical problem solving skills.
Perbedaan Kemampuan Penalaran Matematis Siswa Menggunakan Model Pembelajaran Discovery Learning dan Model Pembelajaran Konvensional pada Tingkat SMP Siti Muharramah; Wingston Leonard Sihombing
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): 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.v3i1.2544

Abstract

This research aims: (1) students' mathematical reasoning ability using the Discovery Learning learning model is higher than students' mathematical reasoning ability using conventional learning models in class VII MTs Yaspi Labuhan Deli, (2) the process of solving answers made by students in solving problems in the Discovery Learning learning model and Conventional learning model. This type of research is quantitative research with Quasi-Experimental methods. This research was conducted at MTs Yaspi Labuhan Deli. The sampling technique in this study uses Purposive Sampling techniques, namely class VII-A as a class taught with a Discovery Learning learning model and class VII-B as a class taught with a conventional learning model. The data collection instrument used was in the form of observation sheets and student mathematical reasoning ability test sheets in the form of 3 essay questions. Data analysis in this study used t-Test with Independent Sample t-Test technique with the help of SPSS 20 program. The results of this study showed that the average score of classes taught using the discovery learning model was 78,01 and classes taught using conventional learning models were 72,22. For hypothesis testing carried out using a t-test, from the calculation results obtained a value of (2.664) > (1.66757) with a Sig.2-tailed level of 0.010 < 0.05, which means that rejected and was accepted, so that it is concluded that there is a significant difference in the average mathematical reasoning ability of students using the Discovery Learning learning model and the Conventional learning model. Based on the analysis of the process of completing students' answers to the mathematical reasoning ability test that get Discovery Learning learning is better than students who get conventional learning.
Penerapan Pendekatan Realistic Mathematics Education untuk Meningkatkan Kemampuan Pemahaman Konsep Matematis Siswa pada Materi Statistika Kelas VIII-1 SMP Nurul Islam Indonesia Medan Vivi Aledya; Sri Lestari Manurung
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): 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.v3i1.2547

Abstract

This research aims to determine students' ability to understand mathematical concepts through the application of the Realistic Mathematics Education learning approach and to find out how the students' answers process in solving problems on tests of students' ability to understand mathematical concepts after applying the Realistic Mathematics Education learning approach in class VIII-1 of SMP Nurul Islam Indonesia Medan. This type of research is classroom action research through cyclical learning stages. The subjects of this research were 13 students in class VIII-1 of SMP Nurul Islam Indonesia Medan and the object of this research was the students' ability to understand mathematical concepts by applying the Realistic Mathematics Education learning approach to statistical material. Based on the research results, it was found that by applying the Realistic Mathematics Education learning approach, students' ability to understand mathematical concepts in statistical material in class VIII-1 at Nurul Islam Indonesia Middle School in Medan was improved, namely in cycle I the average student ability was only 30.76 with a completion percentage of only 8% of students completed. In cycle II the average student ability increased to 92.95 with a student completion percentage of 100%, so that students had met the classical completion percentage, namely ≥85%. The results of this research show that by applying the Realistic Mathematics Education learning approach to statistics material in class VIII-1 of Nurul Islam Indonesia Middle School in Medan, students can improve their ability to understand mathematical concepts.
Analisis Brand Switching dan Strategi Pemasaran Menggunakan Markov Chain dan Game Theory di Kota Medan Rendy Ihsan Halim; Pardomuan Sitompul
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): 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.v3i1.2548

Abstract

This research analyzes the competitive strategies among Shopee, Lazada, and Tokopedia using Game Theory and Markov Chain, focusing on the marketing mix: price, promotion, security, service, and product availability. The results reveal varied optimal strategies. For instance, in the Shopee vs. Lazada competition, Shopee excels in price (0.66), security (0.124), and product availability (0.208). In the Shopee vs. Tokopedia competition, Shopee prioritizes price (0.129), security (0.375), and product availability (0.33315), while Tokopedia emphasizes price (0.5) and service (0.5). In the Lazada vs. Tokopedia scenario, Lazada stands out in security (0.5826) and product availability (0.4174), whereas Tokopedia focuses on price (0.749) and service (0.251). Regarding customer transition using the Markov Chain, the brand transition probabilities are Shopee (0.469), Lazada (0.306), and Tokopedia (0.223). In conclusion, optimal E-commerce strategies involve 5 different approaches, with variations depending on the competitive pair. The probability of customer transition can be measured through the Markov Chain approach.
Himpunan Kritis pada Graf Bintang Dian Mestika Sari; Mulyono Mulyono
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 2 No. 2 (2023): Oktober : 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.v2i2.2556

Abstract

Labeling is a one-to-one mapping that maps each element of a graph to Positive numbers called labels. One of its kind is edge-magic total labeling. Under special conditions, the results set of labeled graphs whose subsets are labeled and positioned, which builds the same graph as the labeling, is called the critical set. To obtain the critical set of a graph we must know the type of graph. In this study is a star graph. This study aims to determine the critical set in star graphs. The star graph used is the K1.5 star graph using center points 1, n + 1 and 2n + 1. The research results show that by labeling the total magic side of the K1.5 star graph with center point λ(c) = 1, the magic number k=14 is obtained. The possible critical set of K1.5 graphs is 120. In the K1.5 Star Graph with center point λ(c) = n+ 1, the magic number k=18 is obtained. The possible critical set of K1.5 graphs is 120. In the K1.5 Star Graph with center point λ(c) = 2n + 1, the magic number k=22 is obtained. The possible critical set of K1.5 graphs is 120.
Pengaruh Model Pembelajaran Matematika Knisley terhadap Pemahaman Konsep Matematis Siswa Kelas X Juita Inganta Cicio Br Ginting; Mangaratua M Simanjorang
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 2 No. 2 (2023): Oktober : 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.v2i2.2562

Abstract

This research aims to determine the effect of the Knisley mathematics learning model on the understanding of mathematical concepts in class X SMA Negeri 2 Kabanjahe. This research was conducted using a sample of 2 classes, namely the Experiment class and the Control class. The form of test that is tested on students is an initial test (pretest), then the researcher provides treatment in the experimental teaching class using the Knisley Mathematics Learning Model and in the control class using the direct learning model, Then a posttest was given to both classes. The data obtained were analyzed using the t test. The results showed that the pretest average in the experimental and control classes was the same as tested using the average similarity test (two-way test) and met namely so accepted. For the posttest average equality test (right side test), it was concluded that the posttest average in the experimental class was greater than the control class because it met the requirements, namely 11.6111559 > 1.66907, so was rejected and the conclusion was obtained that there was an influence Knisley's mathematics learning model for understanding mathematical concepts for class X.
Penerapan Model Pembelajaran PBL Berbantuan Software Geogebra Untuk Meningkatkan Kemampuan Pemahaman Konsep Matematis Siswa Nur Icha Putri; Mukhtar Mukhtar
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 2 No. 2 (2023): Oktober : 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.v2i2.2563

Abstract

This research applies the PBL learning model with the help of Geogebra software to test the increase in junior high school students' ability to understand mathematical concepts. This research aims to find out whether the application of the PBL learning model assisted by Geogebra software can improve students' ability to understand mathematical concepts. The research method used is Classroom Action Research. The subjects of this research were 29 students in class VII-6 of SMP Negeri 17 Medan. The object of this research is to increase students' understanding of mathematical concepts in set material with the PBL model assisted by Geogebra software. Based on the research results obtained, in cycle I the number of students who completed classical learning was 8 students (27.59%), and 21 students (72.41%) had not yet completed it, with an average class score of 54.87. In cycle II there was an increase in students' ability to understand mathematical concepts, there were 21 students (72.41%) who achieved completeness and 8 students (27.59%) who had not yet completed it, with a class average score of 72.24. The target percentage level of student success based on the second cycle test of understanding mathematical concepts has reached the specified completeness, namely 70% with a KKM of 70. Based on the research results, it can be concluded that the application of the Problem Based Learning (PBL) model assisted by Geogebra software can improve the ability to understand mathematical concepts student.

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