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Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo Jl. Ilong, Dusun Gasing Pal 4, Amboyo Utara, Ngabang, Landak - Kalimantan Barat Email: riemann@sanagustin.ac.id Website: https://www.sanagustin.ac.id
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Riemann : Research of Mathematics and Mathematics Education
Published by Universitas Katolik Santo Agustinus Hippo
ISSN : 27218848     EISSN : 2721883X     DOI : https://doi.org/10.38114/pgnbcd43
Core Subject : Education,
Education Mathematics
Riemann: Research of Mathematics and Mathematics Education Journal Riemann is peer-reviewed journal that contains the work of the field of educational research or teaching mathematics, mathematics, mathematical applications, mathematical computerization, and models of mathematics education in the learning process. Journal Riemann is published Thrice a year, every April, September, and December. The focus and scope of the Journal Riemann covers the following topics: Mathematics Teaching Mathematical Applications Mathematical Computerization Model of Mathematics Education
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 60 Documents
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Total Edge Irregularity Strength of Graph L_3⊙N_m Nikita; Sri Nurhayati; Trisha Magdalena A. Jauvani; Selvy Musdalifah; Iman Al Fajri; Andri
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.104

Abstract

An edge irregular total k-labeling of a simple graph  is a labeling that assigns positive integers to its vertices and edges such that the weight of every edge, defined as the sum of the labels of the edge and its two incident vertices, is distinct. The smallest integer  that allows such a labeling is called the total edge irregularity strength, denoted by  In this paper, we study the total edge irregularity strength of the corona product of a ladder graph ​ and a null graph ​, denoted by  By applying constructive labeling and analyzing the resulting edge weights, we show that all edges can be assigned distinct weights. From Theorem 1, it is obtained that . This result contributes to the development of graph labeling theory and can be extended to larger ladder graphs for further applications, including cryptography and network security.
The Effectiveness of Realistic Mathematics Learning Based on Mandailing Culture with a Deep Learning Approach In Improving Logical Thinking Skills Sangkot Idris Ritonga; Raden Sri Ayu Ramadhana; Abdul Hakim Dalimunthe; Nur Latifah; Meisyah Rahma Dani Siregar; Rangkuti, Rizki Kurniawan; Hidayatul Mazidah Harahap
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.105

Abstract

The purpose of this study was to develop and test the effectiveness of a Realistic Mathematics learning model based on Mandailing culture with a Deep - Learning approach in improving the logical thinking skills of high school students. This approach aims to build a deep and meaningful understanding of concepts through the integration of local cultural contexts that are close to students' lives. The methodology used is the development research method with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The analysis stage involves literature studies and field observations to identify students' needs and relevant Mandailing cultural potential. The design and development stage produces learning tools in the form of lesson plans, student worksheets, and learning media that have been validated by material experts and cultural experts. Implementation was carried out through a quasi-experiment in two classes (experimental and control) with a logical thinking test instrument as the main measuring tool. Evaluation was carried out formatively and summatively to determine the effectiveness of learning. The results showed that students who participated in Realistic Mathematics learning based on Mandailing culture with a Deep Learning approach experienced a significant increase in logical thinking skills compared to the control group. In addition, students showed enthusiasm and active involvement because the learning was linked to the culture they were familiar with. The conclusion of this study is that mathematics learning that integrates local culture with an immersive learning approach is effective in improving students' logical thinking skills. This model also strengthens cultural identity while developing higher-order thinking skills. Recommendations are directed to teachers, curriculum developers, and educational policymakers to consider a contextual learning approach based on local culture as a strategy to improve the quality of learning processes and outcomes, particularly in developing students' logical and cognitive thinking skills.
Literature Study: The Effect of Animation Learning Media on Elementary School Students' Interest in Learning Mathematics Umar, Faishal; Chusna, Alfina Zahrotul; Maulidiyah, Nur Azizatul; Fakhriyah, Fina; Fajrie, Nur
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.63

Abstract

This article aims to explore the impact of using animation media in teaching and learning activities on interest in learning mathematics among elementary school students. The method used is literature reflection on scientific articles published in the last five years (2019-2024), which can be accessed via Google Scholar . The learning media exemplified is animated videos, which can be used via various devices such as laptops, computers and Android devices to present mathematical material visually and Dynamically based on literature observations , the use of animated learning media that utilizes the latest digital technology can significantly increase students ' interest in learning. It was found that this approach made it easier for students to understand the lesson material, reduced the level of boredom , and increased their focus on absorbing learning. This approach can be adapted to current needs and developments.
Application of The Problem-Based Learning Model to Improve Students' Mathematical Problem-Solving Abilities in Elementary School Wijayanti, Santika Dwi; Taqiya, Izza; Sari, Fauziyah Kemala; Amaliyah, Fitriyah
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.59

Abstract

This study aims to analyze the application of the Problem Based Learning (PBL) model on students' mathematical problem-solving abilities in elementary school. This type of research uses a quantitative method with a quasi-experimental design. The instrument used to collect data was an objective essay test. This study involved two groups: a control group using the conventional method and an experimental group using PBL. The research results were analyzed using the Independent Sample T-test with the help of SPSS software. The analysis results showed a significant difference in mathematical problem-solving ability between students using PBL and those using the conventional method. The average score of the experimental group was higher than that of the conventional group. Thus, the implementation of PBL influences the improvement of students' mathematical problem-solving abilities. This study recommends the use of PBL in elementary school mathematics learning to enhance students' learning outcomes and analytical skills.
The Role of H5P-Based Interactive Media in The Mathematics Learning Process Wandra Irvandi; Yudi Darma
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.101

Abstract

Educational transformation in the digital era utilizes various technologies to improve the quality of learning and provide innovative learning experiences. This use of technology not only changes the way we learn and teach but also creates a more adaptive and responsive educational environment in the digital era. This study focuses on the integration of interactive media based on H5P to improve mathematical problem-solving skills. The research method used a literature review to examine the relationship between technology and mathematical problem-solving skills. The results show that interactive media based on H5P can be utilized to make learning more innovative. The media meets the criteria of validity, practicality, and effectiveness, making it suitable for use in the learning process.
Analysis of Students Mathematical Concept Understanding at MTs Al-Mahrus in Terms of Learning Style Pulungan, Nurbaiti Octiviani; Cut Latifah Zahari
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.106

Abstract

The The ability to understand concepts is the ability to understand and account for an idea as well as the ability to think logically, critically, creatively and innovatively. The research objective of this study is to look at the profile of the ability to understand concepts through PjBL learning in terms of students' learning styles in understanding mathematical concepts in class VIII-A statistics material at MTs Al-Mahrus Mabar. The method used in the research is descriptive qualitative research. The research location is Jalan RPH LINK.IV Mabar Hilir Medan and the research time was carried out in the 2023/2024 academic year. The research subjects were 6 students from 22 students, where the researcher chose 2 students each with visual, auditory and kinesthetic learning styles based on the student learning style questionnaire that had been given. The researcher's data collection method used four techniques, namely observation, interviews, questionnaires and concept understanding ability tests. Data analysis is carried out by reducing data, presenting it, and drawing conclusions. The research results show that students with kinesthetic learning styles understand mathematical concepts better than students with visual and auditory learning styles. Students with a kinesthetic learning style are able to understand three of the four indicators of conceptual understanding, while students with a visual style, the same as students with an auditory learning style, are only able to understand two of the four indicators of conceptual understanding.
Analysis Junior High School Students' Conceptual Understanding of Flat-Sided Space Structures Based on Bloom's Taxonomy Ahmad ubaidillah; Luluk Faridah; Khafidhoh Nurul Aini
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.108

Abstract

This study aims to analyze junior high school students' conceptual understanding in solving problems on three-dimensional with flat surfaces based on the revised Bloom's Taxonomy. This research employed a descriptive qualitative method with 6 seventh-grade students of SMP Negeri 1 Glagah , selected through purposive sampling. The research instruments consisted of essay tests and semi-structured interview guidelines referring to the six cognitive levels of Bloom's Taxonomy (C1–C6) and validated by experts. The data were analyzed through data reduction, data display, and conclusion drawing, with methodological triangulation to ensure the validity of the findings. The results showed that 13% of students were in the high category, 73% in the medium category, and 13% in the low category. High-category students mastered all conceptual understanding indicators, while medium- and low-category students experienced difficulties at the analyzing (C4), evaluating (C5), and creating (C6) levels. These findings indicate the need for learning strategies that enhance higher-order thinking skills through contextual problem-solving, the use of visual media, and problem-based learning.
The Influence of Nutritious Food Consumption Patterns in the Free Nutritional Meal Program (MBG) on the Mathematics Learning Achievement of Students at SDS Maniamas Ngabang Emelia Yesi; Annur, Muhammad Firman
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.109

Abstract

This study aims to analyze the effect of the Free Nutritious Meal (Free Nutritious Meal - MBG) program on the mathematics learning achievement of students at SDS Maniamas Ngabang. The research is motivated by a government initiative to address nutritional deficiencies in children, which often impacts the quality of education. This study used a quantitative approach with a pre-experimental one-group pretest-posttest design. Data were collected from 35 students through mathematics achievement tests administered before (pretest) and after (posttest) the implementation of the MBG program. Descriptive statistical analysis showed an increase in the average mathematics learning achievement score from 85.83 to 89.28 after the program was implemented. A paired-sample t-test yielded a significance value (p-value) of 0.000, which is less than 0.05. This result indicates a statistically significant difference between students' learning achievement scores before and after participating in the MBG program. Thus, it can be concluded that the Free Nutritious Meal (MBG) program has a significant positive effect on the improvement of mathematics learning achievement for students at SDS Maniamas Ngabang.
The Use of The Wordwall Game in Integer Arithmetic Operations to Increase The Mathematics Learning Interest of Fifth-Grade Students Jessica Dhiya‘ Ulhaq; Muhammad Ya’ban Zakiya; Diana Ermawati
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/reimann.v7i2.55

Abstract

This research was conducted to increase interest in learning mathematics by using a wordwall for integer calculation operations. This research was carried out at SD Negeri 3 Sidigede with the research subjects being students. The data collection techniques used in this research were observation and interviews in the form of questionnaires. The data analysis technique used is the Miles and Huberman interactive technique which includes data reduction, data presentation and drawing conclusions. This research uses the PTK method which consists of 2 cycles based on the Mcel Kemmis and Mc Taggart models. The results of the research show that there is an influence on the learning interest of class V students at SD Negeri 3 Sidigede, indicated by an increase in the percentage of the student interest indicator, obtaining a percentage of 76.5% in cycle I and 84.57% in cycle II. The use of wordwall greatly influences students' interest in learning mathematics because it uses fun media so that students are interested in learning.
Leveraging Contextual Worksheet to Reveal Students' Proofing in Counting Rules Uripno, Gusti; Nurfalah, Edy
Riemann: Research of Mathematics and Mathematics Education Vol. 7 No. 2 (2025): EDISI AGUSTUS
Publisher : Program Studi Pendidikan Matematika Universitas Katolik Santo Agustinus Hippo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38114/riemann.v7i2.114

Abstract

This study aims to explore how contextualized combinatorics tasks set within a cinema-themed worksheet support undergraduate students’ transition from concrete enumeration strategies to formal combinatorial reasoning through a qualitative case study design. Participants engaged with four scaffolded tasks that first had them list seating arrangements for three friends and subsequently required them to explain the principles governing ordered versus unordered selections, while their written responses and verbal protocols were analyzed using thematic coding of representational approaches and justification quality. Findings reveal that embedding tasks in a familiar narrative and providing multimodal supports such as tables and color-coded diagrams helped students explicitly identify variables, assumptions, and logical steps, enabling them to construct factorial-based arguments without reliance on rote computation. Although all participants ultimately derived correct combinatorial solutions, the depth and clarity of their proofs varied in relation to individual verbal reasoning skills, and common misconceptions were effectively addressed when scenarios contrasted ordered and unordered cases. This single-paragraph abstract highlights that progressively reducing concrete scaffolds within real-world contexts enhances both engagement and conceptual understanding in discrete mathematics, suggesting that culturally relevant narratives and adaptive supports merit further investigation in larger-scale, mixed-methods studies.

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