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Junaidi, S.Pd., M.Pd.
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l. Majapahit No. 62 Mataram, Nusa Tenggara Barat, Indonesia Lantai 2 gedung E, Program Studi S1 Pendidikan Matematika, FKIP Universitas Mataram
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Mandalika Mathematics and Educations Journal
Published by Universitas Mataram
ISSN : 27158292     EISSN : 27151190     DOI : 10.29303/jm
Core Subject : Education,
Mathematics
Mandalika Mathematics and Education Journal adalah Jurnal Matematika dan Pendidikan Matematika yang dikelola oleh Program Studi S1 Pendidikan Matematika FKIP Universitas Mataram. Fokus dan ruang lingkup dari jurnal ini adalah artikel ilmiah baik berupa hasil penelitian, review artikel maupun kajian pustaka khusus bidang Matematika dan Pendidikan Matematika.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 319 Documents
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Analisis Kesulitan Peserta Didik Dalam Mengubah Pecahan Biasa Berdasarkan Gaya Kognitif Konseptual Tempo Lutfia, Puti Cahya; Mulyawati, Ima
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9214

Abstract

This study aims to identify the difficulties faced by fourth grade students in sorting ordinary fractions based on conceptual tempo cognitive style, and also reveal the factors that can influence it. The approach used is descriptive qualitative with a focus on the individual characteristics of learners. Data obtained through interviews with classroom teachers and giving practice tests on fractions designed in accordance with the indicators of reflective and impulsive cognitive styles. The results showed that students with reflective cognitive style are more likely to work on problems carefully and meticulously, but require a longer time. Conversely, learners with impulsive style can solve problems quickly but often make mistakes due to lack of accuracy. These findings indicate that the application of learning strategies that are tailored to the conceptual cognitive style of tempo can improve students' understanding and ability in fraction material. Therefore, it is important for teachers to consider students' cognitive style in designing an effective and adaptive learning style approach.
Pengembangan LKPD Berbasis Etnomatematika pada Arsitektur Pura Mandhara Giri Semeru Agung Bunga, Shanty Bunga Adinda; Firdaus, Hana Puspita Eka; Fatqurhohman, Fatqurhohman
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9218

Abstract

The urgency of this study lies in the importance of integrating local culture into mathematics learning to create a learning experience that is contextual, meaningful, and relevant to the students' environment. The ethnomathematics approach is seen as an effective strategy to learn mathematical concepts through local wisdom while fostering appreciation for culture. This study aims to develop a Student Worksheet (LKPD) based on ethnomathematics, using the architectural context of Pura Mandhara Giri Semeru Agung, focused on geometric transformations for 11th-grade high school students. The method used is Research and Development (R&D) with the ADDIE model, which includes analysis, design, development, implementation, and evaluation stages. The instruments consist of validation sheets to measure the product's feasibility, teacher interviews, and student response questionnaires to assess practicality. The validation results show a validity level of 98.335% (categorized as very valid), student practicality at 88.45%, and teacher response at 97.50% (very practical). In conclusion, this ethnomathematics-based worksheet is feasible for use in mathematics and effective for learning geometric concepts integrated with local culture. Further research is recommended to test its effectiveness in improving learning outcomes and cultural appreciation across different educational levels.
Pengembangan Model Supply Chain Pangan Berbasis Matematika di Nusa Tenggara Barat Afriansyah, Dilla; Perdhana, Firman Fajar; Dwikasari, Lingga Gita; Sukma, Dinda Galuh
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9219

Abstract

The food supply chain in West Nusa Tenggara (NTB) faces several challenges, including poor transportation infrastructure, high distribution costs, and post-harvest losses. This study aims to design a mathematical model based on Linear Programming (LP) to improve the efficiency of the food supply chain in the region. The findings reveal that investments in transportation infrastructure, post-harvest technology, and technology-based information systems can significantly reduce distribution costs by 15%, decrease post-harvest losses by 25%, and enhance price stability. This model provides practical solutions to optimize food distribution and supports sustainable food security policies.
Pengembangan Media Interaktif Pada Materi Geometri dengan Website Berbasis Geogebra Siswa Kelas IX di SMPN 9 Mataram Fadila, Kasturi Anisa; Amrullah, Amrullah; Primajati, Gilang; Hikmah, Nurul
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9231

Abstract

This study is motivated by the number of students who have difficulty in understanding geometric transformation material, this can be seen from the low daily test results, lack of understanding of basic concepts, inability to solve varied problems, and difficulty in determining coordinates appropriately. One of the main factors causing these problems is the lack of use of interactive learning media that can actively involve students in the learning process, as well as the dominance of conventional learning methods. This research aims to develop interactive media with a geogebra-based website that is valid and practical. This research uses the ADDIE development model which consists of five stages: analysis, design, development, implementation and evaluation. Data collection techniques include observation, interview, validation questionnaire, and practicality questionnaire. The validation questionnaire was analyzed using Aiken's V formula, while the practicality was analyzed using the practicality score. The developed media has been tested on students of class IX-A at SMPN 9 Mataram. The results showed that the interactive media with a geogebra-based website was included in the very valid category with a score of 84.5% and very practical with a score of 94.2%.
Exploring Numeracy Games as an Ice-Breaking Strategy: Impact on Mathematics Learning Achievements Jumrah, Jumrah
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9240

Abstract

students frequently perceive it as intimidating, monotonous, and challenging. Indonesian learners achieved merely 366 points in mathematics assessments, representing a decline from previous PISA evaluations between 2015-2018. This performance falls substantially below the standard range of 465-475 points, primarily due to widespread negative attitudes toward mathematics among students. Students' lack of enthusiasm for mathematical studies creates aversion and anxiety, hindering their learning experience. To combat these negative emotions, educators must implement engaging teaching strategies that promote comfort and relaxation during instruction. Ice-breaking techniques represent one effective approach, particularly when incorporating educational games that combine entertainment with learning objectives. Numeracy games offer an excellent ice-breaking method, allowing students to grasp fundamental mathematical principles while enjoying interactive activities. This research investigates how ice-breaker techniques using numeracy games enhance academic achievement among eighth-grade students. The study utilized a pre-experimental design with a single experimental group to evaluate the ice-breaker method's effectiveness on mathematics performance in class VIII.2 at SMP Negeri 2 Patampanua. Employing a quantitative experimental methodology, researchers conducted a one-group pretest-posttest analysis within the same classroom setting. Results demonstrate that ice-breaker strategies incorporating numeracy games significantly improve mathematics learning outcomes for students in the examined class, suggesting this approach effectively addresses traditional barriers to mathematical education
Pengembangan Media Pembelajaran Assemblr Edu Berbasis Augmented Reality (AR) Mata pelajaran Matematika Materi Bangun Ruang Kelas V Sekolah Dasar Fauzi, Nur Akhmad; Saputro, Hengkang Bara
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9251

Abstract

This study aims to develop Augmented Reality (AR)-based mathematics learning media using the Assemblr Edu application on the material of spatial figures for grade V elementary schools. The background of this study is based on the low motivation and understanding of students towards abstract material, as well as the limited use of technology in learning at Wirosaban Elementary School. The study used the Research and Development (R&D) method with a 4D development model modified into three stages: define, design, and develop. The results of the media validation showed very good quality with a score from media experts of 93.3%, material experts 80%, and learning experts 81.6%. The practicality test also showed very good results, namely 98.3% from teachers and 92.7% from students. This media is considered feasible and practical to be used as an alternative innovative learning to improve students' understanding and motivation to learn in understanding the concept of spatial figures. This study shows that the integration of AR technology in learning can provide a more interactive, interesting, and relevant learning experience to the needs of the 21st century.
Pembelajaran Struktur Aljabar Berbantu Design Batik Sasambo Untuk Menggali Potensi Kreatif dan Sikap Ilmiah Mahasiswa Anwar, Yunita Septriana; Sirajudin, Sirajudin; Pramita, Dewi
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9287

Abstract

This study aims to measure students' creative thinking abilities based on the Torrance Tests of Creative Thinking (TTCT), which include fluency, flexibility, and novelty. It is a descriptive-qualitative study designed to describe and interpret tasks related to Group Theory in the Algebra Structure course. The learning process was conducted over three sessions, each involving structured discussions to assess students' abilities and creativity in learning Algebra Structure, supported by the Batik Sasambo design. The results show that applying the Batik Sasambo design in Algebra Structure learning can enhance students' creative thinking in understanding the concept of algebraic structures and solving simple algebra problems. In the first session, only some aspects of creativity were evident. For example, the observed components were fluency and flexibility. However, by the final session, all three aspects of creativity appeared simultaneously.
Hubungan Self Efficacy dan Motivasi Belajar dengan Kemampuan Pemecahan Masalah Matematis Siswa SMA pada Materi SPLTV Gustia, Satria Kamal; Esti Ambar Nugraheni
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9304

Abstract

This research aims to determine whether there is a significant relationship between self-efficacy and mathematical problem solving abilities, as well as between learning motivation and mathematical problem solving abilities. Apart from that, this research also aims to find out whether there is a significant relationship between self-efficacy and learning motivation together with the mathematical problem solving abilities of class X students at SMAN 1 Tajurhalang on SPLTV material. This research uses a quantitative approach with correlational methods. The population in this study included all 360 class X students, with a sample of 199 students from six classes. Data collection was carried out through tests to measure mathematical problem solving abilities on SPLTV material, as well as questionnaires that measured students' levels of self-efficacy and learning motivation. The results of the analysis using the Pearson correlation coefficient and multiple correlation show that there is a significant relationship between self-efficacy and mathematical problem solving ability, with a value of r = 0.202 which is classified as a low relationship. Meanwhile, the relationship between learning motivation and mathematical problem solving ability obtained a value of r = 0.194, which is in the very low category. Further analysis also shows that together, self-efficacy and learning motivation have a significant relationship with mathematical problem solving abilities, with a value of r = 0.211 which is in the low relationship strength category.
ANALISIS KESIAPAN GURU PEMULA DALAM MENGAJARKAN KETERAMPILAN BERPIKIR KRITIS DAN KREATIF Sarjana, Ketut; Lu'luilmaknun, Ulfa; Intan Kertiyani, Ni Made; Kurniawan, Eka
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9317

Abstract

This study aims to analyze the readiness of novice mathematics teachers in Mataram City to teach critical and creative thinking skills to junior high school students. A descriptive method was employed with a purposive sample of 23 novice teachers. The research instrument consisted of tests measuring teachers' understanding of critical and creative thinking concepts and their ability to formulate questions that foster these skills. The results indicate that most novice teachers have good readiness, with an average score of 77.23. However, readiness varies by teaching experience, where teachers with 0–1 year and over 5 years of experience show higher readiness than those with 1–3 and 3–5 years of experience. These findings highlight the necessity of continuous training and mentoring to sustain and improve novice teachers’ competence in teaching 21st-century skills. The study recommends the development of focused professional development programs aimed at enhancing teachers’ abilities to teach critical and creative thinking.
Pemodelan Kejadian Penyakit Tuberkulosis di Provinsi Jawa Barat Tahun 2023 Menggunakan Metode Geographically Weighted Negative Binomial Regression (GWNBR) Ratu Bunga Prawesti Arie Salim; Anuraga, Gangga
Mandalika Mathematics and Educations Journal Vol 7 No 2 (2025): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i2.9318

Abstract

Tuberculosis (TB) is the leading cause of death due to infection by the bacteria Mycobacterium tuberculosis, which can attack the lungs and other organs. Reducing TB rates is one of the main targets in the Sustainable Development Goals (SDGs). In 2023, Indonesia will be ranked second in the world for TB cases after India, with West Java Province as one of the main contributors experiencing a significant increase, namely 160,966 cases in the productive age group (≥15 years) and 50,993 cases in the children's group (0–14 years). This study aims to analyze the factors that influence the number of TB cases in West Java Province in the productive age group using the Geographically Weighted Negative Binomial Regression (GWNBR) method, which considers spatial aspects between regions and is able to handle overdispersion problems in count data. The six independent variables tested include population density, percentage of public places that meet health requirements, number of hospitals, percentage of the population who smoke, air quality index, and number of HIV sufferers. The modeling results using the GWNBR method with Fixed Kernel Gaussian weighting produced ten regional groups, each with different risk factor characteristics for the number of TB cases.

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