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Krida Singgih Kuncoro
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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.
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Articles 16 Documents
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Search results for , issue "Vol 12 No 3 (2024)" : 16 Documents clear
Analysis of mathematical concept comprehension ability in slow learners students Sopia, Fasya Fi'la; Balkist, Pujia Siti; Nurcahyono, Novi Andri
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.v12i3.16994

Abstract

Mathematical comprehension is a fundamental skill that plays a crucial role in understanding and solving problems across various mathematical topics. This study aims to analyze the mathematical comprehension abilities of slow learners in the SPLDV (Two-Variable Linear Equation System) material. A descriptive qualitative approach was employed in this study. The subjects consisted of 20 slow learners in grade VIII of SMPIT in Sukabumi Regency. Data were collected through written tests and interviews, and analyzed using data reduction, data presentation, and conclusion drawing techniques. The results indicate that students with low comprehension skills have not fully mastered the SPLDV material and can only answer questions at levels 1, 2, and 3 but do not fully meet the indicators. Students with medium comprehension skills are able to answer questions at levels 1 and 2 according to the indicators. Meanwhile, students with high comprehension skills can answer questions at levels 1, 2, and 3 while meeting the indicators. The analysis of answers and interview data reveals that students in the low, medium, and high comprehension categories demonstrate distinct indicators of mathematical comprehension ability. In conclusion, slow learners exhibit varied levels of mathematical comprehension, highlighting the need for differentiated teaching strategies to address their specific needs and enhance their understanding of SPLDV concepts.
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 student worksheets to enhance computational thinking skills in 7th grade students on ratio material Mustaqimah, Utami Puspita Sabilla; Supratman, Supratman; Lestari, Puji
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.v12i3.17611

Abstract

Computational thinking is a theory born in computer science that applies computational principles to solve a problem. It is a new concern in the PISA 2021 mathematical assessment to accommodate human resources needs that can compete in the 21st-century digitalization era. This study aims to develop a learning tool called student worksheet (LKPD) that integrates indicators of computational thinking skills into the material ratio. The method used is Research and Development (R&D), with the subject of research being 32 students in one Junior High School in Ciamis Regency. The data collection technique is done by observation, interview, and questionnaire given to material experts, media experts, and students. The data were analyzed quantitatively using descriptive product validity and practicality scores. The results showed that the assessment of material experts, including aspects of legality and morality, the feasibility of content, the feasibility of presentation, and aspects of computational thinking, received a level of validity of 99%, so it is included in the category of very valid. Likewise, the assessment of media experts covering anatomy, graphics, and use of language was declared very valid, with a validity rate of 82 %. The product's practicality gets a very practical category with an average score of 86% covering material aspects, use of language, interest, and aspects of computational thinking. The products that have been developed are considered valid and practical for use as educational resources for learning ratios and enhancing computational thinking ability.
Improving understanding of place value of numbers through the STAD type cooperative learning model and media stick box Luviana, Rika; Irawati, Riana; Isrok'atun, Isrok'atun
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.v12i3.17719

Abstract

The background of this research highlights that students often struggle to understand the place value of numbers, as each digit in a number represents a value based on its position. This challenge arises because the learning process lacks the use of engaging media and relies heavily on one-way interactions. To address this issue, a teaching approach that incorporates media and promotes active student involvement is required. This research implements the STAD-type cooperative learning model assisted by a stick box to enhance students' understanding of place value concepts. The study employs a quasi-experimental nonequivalent control group design method, with fifth-grade students from public elementary schools in North Sumedang District as the population. The primary research instrument is an essay test designed to measure conceptual understanding, supplemented by non-test instruments such as observations and questionnaires to collect additional data. The findings indicate that the STAD-type cooperative learning model assisted by a stick box significantly improves students' understanding of the place value concept, with a gain score of 0.746 categorized as high. In contrast, the conventional learning model resulted in a gain score of 0.178, categorized as low. Thus, it can be concluded that there is a significant difference in conceptual understanding of place value between students who learn using the STAD-type cooperative model with stick box assistance and those who engage in conventional learning methods.
Analysis of students’ difficulties in solving probability questions: The case of advanced certificate of secondary education examination in Tanzania Mrope, Fadhili Mustafa; Deogratias, Emmanuel
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.v12i3.17730

Abstract

This study investigates students' performance in solving probability-related questions in the Advanced Certificate of Secondary Education Examination (ACSEE) in Tanzania. The purpose is to identify the challenges students face when tackling these problems and provide insights for improving their performance. Using analysis of exam responses, the study reveals that many students struggle with probability questions, particularly those involving probability distributions like Binomial and Poisson. The difficulties arise from conceptual misunderstandings, the complexity of probability tasks, and the inappropriate use of generalized problem-solving techniques. To address these issues, we recommend conducting protocol analysis to understand students' cognitive processes when solving probability problems. This approach could guide teachers in developing instructional strategies that enhance students' comprehension and application of probability concepts. The findings contribute to shaping educational policies and teaching practices that can improve mathematical literacy and performance in probability tasks.
Development of Augmented Reality media in polyhedral space-building lessons to improve the mathematical reasoning ability Prayoga, Hanna Arsyinta; Pamungkas, Megita Dwi; Nurjanah, Arifta
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.v12i3.17756

Abstract

Technology plays a crucial role in education, especially in supporting teachers with interactive media to enhance students' mathematical reasoning in polyhedral geometry. This study aims to improve students' mathematical reasoning by developing and utilizing valid, practical, and effective augmented reality (AR) media for polyhedral geometry. The research adopts the ADDIE development model. The validity test results of the developed media indicate a validity score of 81.79% for media and 78.33% for material, categorized as highly valid. The practicality analysis, based on student response questionnaires, yields a score of 79.08%, categorized as practical. The effectiveness analysis, based on pretest and posttest data analyzed using the Paired Sample T-test, reveals a significant value of 0.000, indicating a significant improvement in students' average scores. Furthermore, the N-Gain score of 0.64 falls into the moderate category, confirming the media's effectiveness in enhancing mathematical reasoning. In conclusion, the augmented reality learning media for polyhedral geometry is valid, practical, and effective in improving students' mathematical reasoning. Future research is encouraged to develop more innovative products to further enhance learning quality.
The effect of using the educational game Quizizz on student motivation and math learning in grade 8 Nikola, Dimas Ananda; Harini, Esti; Taufiq, Irham
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.v12i3.17763

Abstract

The integration of technology in education has introduced innovative tools to enhance learning experiences, including the use of educational games. This study examines the impact of the educational game Quizizz on the motivation and mathematics performance of eighth-grade students. The research utilized a quasi-experimental design with a Non-Equivalent Control Group Design. The sample was selected using cluster random sampling, consisting of 25 students from class VIII B as the control group and 25 students from class VIII C as the experimental group. Data were collected through questionnaires and mathematics tests. The analysis employed an Independent Sample t-Test to evaluate the effect of Quizizz on student motivation and a Mann-Whitney test to assess its impact on mathematics learning outcomes. The results revealed a significant positive effect of Quizizz on motivation, with a p-value of 0.042 (p < 0.05). Similarly, Quizizz significantly improved mathematics learning outcomes, as indicated by the Mann-Whitney test (p = 0.047). These findings suggest that Quizizz is an effective interactive learning tool that enhances both student motivation and academic achievement in mathematics. Thus, incorporating Quizizz into classroom activities can be a strategic approach to fostering student engagement and improving learning outcomes in mathematics.
Influence of teams games tournament learning model based on Flippity media on junior high school students interests in mathematics learning Rizky, Sisty Annisa; Purnami, Agustina Sri; Harini, Esti
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.v12i3.17764

Abstract

In the context of improving student engagement and interest in mathematics, innovative teaching methods are essential. This study aims to examine: (1) students' interest in learning mathematics using a conventional teaching model, (2) students' interest in learning mathematics using a Flippity-based Teams Games Tournament (TGT) model, and (3) the effect of the Flippity-based TGT model on students' interest in learning mathematics. The research employs an experimental design with a quasi-experimental approach using a nonequivalent control group design. The population consists of eighth-grade students at SMP Muhammadiyah 4 Yogyakarta, and cluster random sampling was used to select the sample. Data were collected through observation, questionnaires, and documentation. Data analysis was conducted using a t-test. The results indicated that students' interest in mathematics with the conventional model had an average score of 68.04, categorized as average, while the TGT-based Flippity model showed an average score of 72.72, categorized as good. The hypothesis test revealed a significant effect of the Flippity-based TGT model on students' interest in learning mathematics, with a p-value of 0.036 (p < 0.05). Based on these findings, it is recommended that mathematics teachers consider implementing the TGT model with Flippity media, as this combination positively impacts students' interest in mathematics learning.
Analysis of practice math problems on statistics material for 8th grade students Riski, Muhammad; Arliani, Elly; Fitriana, Silfi Nisa
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.v12i3.17911

Abstract

To improve the quality of learning, learning evaluation has an important role. One of the learning evaluations that is often carried out is daily assessments to see the achievement of particular material. The aim of this research is to describe the quality of mathematics questions in statistics material for junior high school students. The method used in this research is quantitative descriptive research assisted by the AnBuSo program and R studio software. The data collection technique used documentation techniques, with data sources in the form of mathematics questions on statistics material. Question items analysis is applied to prove validity, estimate reliability, level of difficulty, discrimination, as well as analyzing the factors that cause the question items to be difficult and have poor discrimination. The respondents in this research were 200 students taken from three junior high schools in DIY. Meanwhile, qualitative data analysis is used to explain the difficulty index and discrimination of the test items. The results of this research show that the Aiken value is valid, and the reliability estimates are quite good. The results of analysis based on the CTT and IRT approaches obtained a good mean index of difficulty and discrimination. These findings imply that the validated and reliable question items can be used as a reference for developing higher-quality assessments to improve student learning outcomes.
Ethnomathematics in Javanese and Sundanese batik: An AI-assisted comparative analysis Adhitya, Yusuf; Supriyadi, Edi
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.v12i3.18024

Abstract

This research is an ethnographic study using two AI tools (ChatGPT and Gemini AI) to analyze comparatively the different patterns between Javanese and Sundanese batik. The data was obtained from two AI-generated outputs of two prompts focusing on geometric patterns and transformations. The study used a triangulation process by matching and contrasting AI-generated outcomes with previous literature. The findings reveal that: 1) Javanese batik motifs contain more geometric designs, in the other hand, Sundanese batik tends to use more fluid and organic patterns, and 2) the majority of Javanese batik combines both reflection and rotation, whereas Sundanese batik uses translation and reflection. Math properties from both batik designs are inspired by different cultures. Batik patterns from Java represent values such as balance, organization, and class whereas Sundanese batik expresses Sundanese beliefs about respect for nature. It highlights that traditional arts should be integrated into mathematics teaching to better understand and appreciate their role in various cultures.

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