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Union: Jurnal Ilmiah Pendidikan Matematika
Published by Universitas Sarjanawiyata Tamansiswa
ISSN : 2339224X     EISSN : 25793209     DOI : https://doi.org/10.30738/union
Core Subject : Education,
Education Mathematics
Union: Jurnal Ilmiah Pendidikan Matematika is a peer-reviewed open access journal published three times in a year (March, July, and November). Union: Jurnal Ilmiah Pendidikan Matematika provides a forum for lecturers, academicians, researchers, practitioners, and students to deliver and share knowledge in the form of empirical and theoretical research articles. The scope of Union is Mathematics Education which includes, but is not limited to the following topics: Mathematics Ability, Mathematics Learning Model, Mathematics Learning Media, Curriculum Development, Assessment and Evaluation, Didactical Design Research (DDR), Realistic Mathematics Education (RME), Ethnomathematics, Research and Development (RnD), PISA Task.
Arjuna Subject : -
Articles 558 Documents
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Development of Tri-N (niteni, nirokke, nambahi) based e-modules on linear equations material for junior high school students Kusumaningrum, Betty; Istiqomah, Istiqomah; Langobelen, Petrus Damianus Sapan
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 3 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i3.17203

Abstract

This study was motivated by the need to enhance student understanding of linear equations through innovative and practical learning resources. The primary aim was to develop and evaluate the validity and practicality of a Tri-N-based E-Module specifically designed for linear equation material. Utilizing a research and development (R&D) approach, the study followed the Four-D model, comprising Define, Design, Develop, and Disseminate stages. Conducted at SMP Negeri 3 Yogyakarta, the research involved 26 eighth-grade students as participants, with data collected through interviews and questionnaires, including validation surveys by material experts, media specialists, and students. The resulting E-Module, tailored to the learning needs of eighth-grade students, was validated with high scores from experts in material and media. Student feedback strongly affirmed its practicality and efficacy in facilitating learning. These findings confirm the Tri-N-based E-Module as a valid and practical tool for teaching linear equations, with significant potential to improve learning outcomes and instructional quality in mathematics education.
Development of Notion-assisted e-modules for enhancing mathematical communication in vocational high schools Sulastri, Yayu Laila; Ahmatika, Deti; Auliya, Selma; Septriani, Anisa; Elsa, Elsa; Khaerunnisa, Najlaa Kania; Sundhari, Rachma
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17250

Abstract

The learning process often relies solely on lecture and discussion methods due to the lack of e-module teaching tools that utilize information technology tailored to students' needs and the students' low mathematical communication skills concerning two-variable linear inequalities. This research aims to determine the validity and effectiveness of students' mathematical communication skills after learning with the two-variable linear inequality e-module assisted by Notion. The research method used is Research & Development with the ADDIE design. The data sources in the research include material expert validators, media experts, and students. Data collection techniques involve validation sheets from material experts, media experts, observation of the learning process, feedback questionnaires, and mathematical communication skills tests. Based on the analysis results, it can be concluded that the developed teaching module is valid and highly valid. The average value of mathematical communication skills reached 83.59, classified as medium. Classical learning completeness was 84.37%. Learning completeness for the low class category is 75%, the medium class category is 80.95%, and the high class category is 100%. In conclusion, the Notion-assisted two-variable linear inequality e-module significantly enhances the mathematical communication skills of vocational high school learners, demonstrating its effectiveness and validity as a teaching tool.
Ethnomathematical exploration of the Al-Akbar National Mosque Surabaya in picture pattern material for fourth grade elementary mathematics Shidqi, Muhammad Alfan Khoirush; Yustitia, Via
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17307

Abstract

The Al-Akbar National Mosque in Surabaya was constructed with various forms of buildings and ornaments where ethnomathematics can be studied, particularly for drawing pattern material in fourth-grade elementary school. The objectives of this study are to describe: (1) the ethnomathematical links in the architecture of the Al-Akbar National Mosque, Surabaya, and (2) the material of image patterns for fourth-grade elementary school found in parts of the Al-Akbar National Mosque. This research utilizes qualitative methods with an ethnographic approach and was conducted at the Al-Akbar National Mosque in the Pagesangan area of Surabaya City. The objects studied include parts of the buildings and decorations of the Al-Akbar Mosque. Data collection methods included observation, interviews, and documentation. The results of the study show that (1) the Al-Akbar National Mosque has ethnomathematical relationships evident in its architecture, layout, and decorations. The concept of image patterns at the Al-Akbar National Mosque is found in the main dome, both outer and inner, as well as the outer pyramid dome. These structures demonstrate the concept of enlarged and smaller image patterns. (2) There are mathematical concepts, especially the pattern of enlarging and shrinking images, present in the Al-Akbar National Mosque, Surabaya. In conclusion, this study underscores the significance of ethnomathematics in architectural design and its potential educational applications in elementary school settings.
Analysis of vector space content for developing a Prezi-integrated linear algebra module: Enhancing elementary algebra learning Siahaan, Meiva Marthaulina Lestari; Fitriani, Fitriani; Tambunan, Siska Nopa Br.
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17315

Abstract

The research aims to analyze vector content material and produce teaching materials that are valid, practical, and effective. The research method used is Alessi and Trollip's development research, which consists of three stages: planning, design, and development. The results of this research indicate that the vector space materials developed for teaching include vectors in R2, R3, and Rn, line and plane parameter equations, dot products and cross products, as well as line and plane coordinate equations in R3. The module assessment from two material experts was 3.33, indicating it is very feasible, while from two media experts it was 3.9625, also indicating it is very feasible. The benefits of this product in supporting students' understanding of vector space material include the composition of the material being based on an in-depth analysis of the textbooks used, relevant sources, and student test results from the previous three years. This approach helps students comprehend vector space, as the module presents relevant images to support the explanations. Additionally, the material in the module is integrated with Prezi, which helps to capture students' interest and encourages them to focus on the explanations. In conclusion, the developed teaching materials are effective in enhancing students' understanding of vector space concepts and are highly feasible for use in educational settings.
The effect of group investigation model of learning on improving mathematics learning outcomes Aini, Kuratul; Mahsup, Mahsup; Mandailina, Vera; Abdillah, Abdillah; Febriani, Putri Ayu
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17515

Abstract

The instructional model is a crucial component in the educational process. This study evaluates the effectiveness of the Group Investigation learning model in enhancing students' mathematics outcomes. A quantitative research method with a One Group Pretest-Posttest design was used, involving 29 eighth-grade students. Data were analyzed using SPSS version 25, revealing a pretest score of 0.010 and a posttest score of 0.063 after implementing the Group Investigation model. The average posttest score was 77.91, indicating a significant impact on learning outcomes. Observations over three sessions showed an increase in student participation from 26.97% with an average score of 2.24 in Session I (categorized as "Less Active") to 42.79% with an average score of 3.56 in Session II, and 45.38% with an average score of 3.78 in Session III (both categorized as "Active"). This increase demonstrates that the Group Investigation model not only enhances student participation but also makes students more active in learning, thereby improving mathematics outcomes. Therefore, the Group Investigation model is an effective strategy for enhancing students' achievement in mathematics. Further research with more refined methods and tools is needed to confirm these findings.
Understanding mathematical concepts using the mind mapping learning model for high school students Jumri, Rahmat; Faras, Haniyah Raihani; Ramadianti, Winda
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17516

Abstract

The purpose of this study is to investigate how the understanding of mathematical concepts by grade XI students at SMA N 6 Bengkulu City is influenced by the application of the mind mapping method. This study employs a quasi-experimental design with control groups. The participants consist of two sections, each with thirty-six students: XI MIPA A and XI MIPA D. The use of mind mapping techniques serves as the independent variable, while students' conceptual knowledge is the dependent variable. Measurements were conducted using tests. Data analysis compared the conceptual knowledge of the experimental and control groups using t-tests and hypothesis tests with a significance level of 5%. The findings indicate that mind mapping positively affects the students' conceptual understanding of mathematical matrices. The conceptual understanding of the experimental group improved significantly, as evidenced by the posttest results, compared to the control group that utilized conventional methods. In conclusion, the mind mapping learning model proves to be an effective tool in enhancing students' comprehension of mathematical concepts.
Effectiveness of AI in solving math problems at the secondary school level: A comparative study with student performance Hidayatullah, Efendi; Untari, Retno; Fifardin, Ferdinandus
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17548

Abstract

The research aims to evaluate the effectiveness of artificial intelligence (AI) in solving mathematical problems at the high school level by comparing the performance of AI with that of students. Utilizing the ChatGPT tool and a dataset of 20 mathematics questions from the high school curriculum, the study involved ten students from the Muhammadiyah Mertoyudan Islamic Boarding School. The results indicate that AI exhibits high accuracy in multiple-choice questions (98%) and short-answer questions (95%), albeit with a decrease in performance for essay questions (75%); conversely, students demonstrated an average accuracy of 85% for multiple-choice questions, 80% for short-answer questions, and 70% for essay questions, additionally, also demonstrated higher consistency, particularly in questions requiring complex conceptual understanding. At the same time, the findings underscore the significant potential of AI as a tool for mathematics learning, further development is needed to enhance its ability to comprehend and respond to essay questions, thereby improving conceptual understanding and critical reasoning. The implications of these findings can contribute to the advancement of more sophisticated and effective educational technology to support mathematics learning in schools.
Analysis of student errors based on Polya’s steps in three-dimensional geometry Muhassanah, Nur'aini; Setiani, Ana
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17575

Abstract

Students often experience difficulties in learning mathematics, particularly in solving word problems. Consequently, students make many errors when answering story questions in mathematics. The aim of this research is to describe students' mistakes according to Polya's theory in solving story problems on three-dimensional geometry materials. Student mistakes identified in Polya's theory include: understanding the problem, planning a solution, implementing the solution plan, and re-examining the obtained solution. The research method used is descriptive qualitative. The technique used is an interactive data analysis model from Miles & Huberman, which consists of four steps in analysis activities: data collection, data reduction, data presentation, and conclusion synthesis. The subjects of this research were 20 students from the Elementary School Teacher Education Study Program. The instruments used in this research are tests in the form of problem-solving questions and non-test instruments, including interviews. The results of the research indicate that many students made errors during the re-examination stage, primarily due to a lack of thoroughness in recording the conclusions from their calculations. For this reason, it is necessary to develop learning methods or models that improve the ability to understand concepts, use a variety of problem-solving strategies, and develop thinking process skills that can help reduce errors in solving mathematical problems.
Analysis of mathematical computational thinking skills in the context problem solving based on gender Alyani, Fitri; Hasanah, Uswatun
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17582

Abstract

This study aims to provide an overview of the computational mathematical thinking abilities of male and female students in solving mathematical problems and the aspects (abstraction, decomposition, algorithmic thinking, and generalization) that influence these differences. This study uses a qualitative method with a case study approach in a junior high school in Jakarta for the academic year 2023/2024. The participants in this study are 36 students. Data were collected through written examinations and interviews and analyzed using the triangulation technique. The results of the study showed different patterns of computational thinking skills between male and female students. Male students excel in decomposition and algorithmic thinking but are weak in abstraction and generalization. Female students excel in abstraction and decomposition but are weak in algorithmic thinking and generalization. Both male and female students master the context of decomposition for computational thinking skills but lack mastery in the context of generalization. In conclusion, gender differences influence specific aspects of computational thinking skills, indicating the need for tailored educational strategies to address these differences.
Development of a mathematics e-module using GeoGebra and LiveWorksheets with discovery learning model to enhance problem-solving skills Dahlia, Dini; Rosyadi, M.; Hulwani, Almas Zati; Pujiastuti, Heni
UNION : Jurnal Ilmiah Pendidikan Matematika Vol 12 No 2 (2024)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/union.v12i2.17601

Abstract

The study aims to produce e-module teaching materials based on Discovery Learning, supported by GeoGebra and LiveWorksheets, as well as to determine whether this e-module is valid, practical, and has a potential effect on students' problem-solving abilities. The research method used is Research and Development (R&D) with an ADDIE design. The research process consists of five stages: (1) Analysis (analysis of material needs, material analysis, and analysis of student characteristics); (2) Design (design or product framework to be made as an initial overview); (3) Development (development of the e-module and preparation of instruments to be used for valid, practical, and effective assessments); (4) Implementation (product review to be developed in classroom learning); (5) Evaluation (the product will be revised based on feedback given by the students to ensure the quality of the developed product is appropriate and adequate). The e-module learning materials were given to class X students of Senior High School. The results of the expert material validation obtained a percentage evaluation of 88%, indicating valid criteria. The test results showed that this e-module received a positive response from the students with an average percentage evaluation of 85%, categorizing it as highly effective. The material validation resulted in an 88% evaluation percentage, indicating valid criteria. The students' validation results obtained an 85% assessment percentage, also indicating valid criteria. The development of this module is worthy and suitable for use in schools by teachers to enhance students' conceptual understanding of quadratic equations and quadratic functions. Additionally, the module can develop critical thinking and problem-solving skills, which are crucial in 21st-century education.

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