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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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Pengembangan Multimedia Interaktif untuk Meningkatkan Kemampuan Pemecahan Masalah dan Self Confidence Siswa Azzahra, Luthfia; Nurhanurawati, Nurhanurawati; Firdaus, Rangga
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.v7i2.9364

Abstract

The lack of precise learning media causes students to have low problem-solving ability and Self Confidence. This research aims to produce interactive multimedia that is valid, practical, and effective in improving students’ problem-solving skills and Self Confidence. The development of this product uses ADDIE’s research procedure. The trial was conducted on linear regression material in class XI of SMA Negeri 4 Kotabumi for the 2024/2025 school year. The data collection techniques used were interviews in preliminary research, tests, and questionnaires. Data analysis techniques include validity tests, practicality tests, and effectiveness tests using t-tests and proportions tests. The development results show that interactive multimedia is categorized as valid and practical, with a material validation score of 85% and an average media score of 88%. The average response score of teachers was 94.21% and students 92.61%, so the product was declared very practical. Based on the t-test, there was a difference in post-test scores between students who used interactive multimedia and those who did not. The results of the proportion test showed that the problem-solving ability and Self Confidence of students who used interactive multimedia reached more than 60% completeness. In conclusion, interactive multimedia meets valid, practical, and effective criteria to improve students’ problem-solving skills and Self Confidence.
Proses Berpikir Kritis Mahasiswa dalam Memecahkan Masalah Investigasi Matematik Triutami, Tabita Wahyu; Eka Kurniawan; Nurul Hikmah; Gilang Primajati; Nyoman Lolly Tirta Sudibya
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.v7i2.9370

Abstract

Kemampuan berpikir kritis adalah salah satu kemampuan yang dibutuhkan di abad ke-21, sehingga menjadi seorang pemikir kritis merupakan salah satu tujuan sistem pendidikan di Indonesia saat ini. Hingga saat ini informasi yang tersedia mengenai deskripsi proses berpikir kritis calon guru matematika masih sangat terbatas. Di lain pihak, pembelajaran matematika dalam setiap jenjang pendidikan harus memberikan kesempatan untuk melakukan suatu kegiatan investigasi matematik. Tujuan dari penelitian ini adalah untuk mendeskripsikan proses berpikir kritis mahasiswa dalam memecahkan masalah investigasi matematika. Penelitian ini merupakan penelitian deskriptif yang menggunakan metodologi pendekatan campuran. Hasil penelitian menunjukkan bahwa terdapat 4 tahapan proses kognitif yang dilakukan mahasiswa ketika memecahkan soal investigasi matematik pada materi induksi matematika, yaitu spesialisasi, pendugaan, generalisasi, dan justifikasi. Pada tahap spesialisasi, mahasiswa cenderung mencoba beberapa kasus khusus untuk dapat menemukan pola secara umum. Pada tahap pendugaan, mahasiswa cenderung mencari pola dari beberapa kasus khusus yang ada untuk kemudian dirumuskan secara umum. Pada tahap generalisasi, mahasiswa merumuskan pola yang didapat secara umum. Terakhir, pada tahap justifikasi, mahasiswa membuktikan kebenaran rumus yang didapatkan dengan menggunakan induksi matematika. Beberapa kesalahan ditemukan dalam tahapan proses kognitif tersebut, antara lain kesalahan konseptual dan kesalahan procedural.
The Antara Berpikir Matematis dan Matematika: Strategi Pemecahan Masalah pada Mahasiswa Pendidikan Guru Sekolah Dasar Kurniati, Nurdiyah; Andi Asrafiani Arafah; Fitri Aida Sari
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

Abstract

Problem-solving ability is a fundamental skill that students must have, especially to meet the demands of 21st-century competencies. However, students' thinking process performance in solving mathematical problems is still relatively low. Therefore, this study aims to identify variations in prospective teachers' thinking processes as an important component in determining student performance. This research is qualitative research by applying a case study approach. The subjects in this study were 29 prospective elementary school teacher students at one of the universities in Borneo. The test instrument used was a description test of 6 questions. The data analysis was conducted through data condensation, data presentation, and conclusion drawing. From the analysis process, the results showed that the problem-solving ability was still not optimal. The thinking process applied by students only tends to certain topics. For the mathematical thinking process, the strategy used is the application of the combination formula and SPLDV. As for the mathematical thinking process, the strategies used are organizing data, listing possibilities, guessing and fixing, eliminating unqualified, working backward, and looking for patterns. Thus, it can be concluded that students can think both mathematically and mathematically in solving mathematical problems.
Analisis kemampuan konseptual dan implementasi TPACK guru profesional matematika (tersertifikasi) di SMPN se-kota mataram Kurniawan, Eka; Gilang Primajati; M. Ginawan Supiarmo; Dita Oktavihari; Musaddad, Aras Maulana
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.v7i2.9421

Abstract

This study aims to analyze the ability and implementation of TPACK of professional SMPN teachers in the city of Mataram. Data collection techniques use questionnaires, interviews, and documentation. The questionnaire referred to in this study is a questionnaire to measure the teacher's TPACK ability, then for interviews to find out the obstacles or results of the implementation of TPACK-based learning. And the documentation referred to in this study is a set of TPACK-based learning ranks with the hope of providing an overview related to the planning, implementation and evaluation of the implementation of TPACK-based learning. The results of this study can be concluded that the conceptual ability and implementation of TPACK of professional (certified) teachers in Mataram City are able to support the 21st century skills of students. The results of the analysis of the questionnaire showed that KINDERGARTEN, PK, PTK, PVK, and TPACK said high while CK and TCK said medium grade. Likewise, with its implementation, the average mathematics teacher can integrate technology into PPT and LKPD. For example, by using learning videos from youtube, quizizz, canva, kahoot, etc. Some of the equipment that supports the TPACK-integrated learning process include laptops, LCDs, projectors, Wifi, Speakers, smartphones, etc. Then some of the obstacles faced by teachers when implementing TPACK-integrated learning include a lack of device units, unstable wifi, low student interest and motivation
Students' Algebraic Thinking Profile at Technology-Assisted Learning in Mathematics That Enhances Their Critical Thinking Badawi, Ahmad; Billah, Farda Azkiya; Dewi , Nuriana Rachmani
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

Abstract

This study aims to examine the effectiveness of the Prepospec learning model, which is assisted by Google Sites, in enhancing students’ critical thinking skills and explores its impact on their algebraic thinking ability. The material learned in this study was the linear equation and its gradient. Mixed methods were used in this study. The quantitative method was used to determine the effectiveness of the Prepospec learning model assisted by Google Sites on students’ critical thinking skills, while the qualitative method was used to characterize their algebraic thinking ability. The results of this study indicate that integrating the Prepropspec model with digital platforms like Google Sites can serve as a promising and effective strategy in mathematics education to enhance students' critical thinking competencies more effectively than conventional Problem-Based Learning (PBL) approaches. Furthermore, based on the analysis, students who experienced the Prepospec learning model showed better performance in algebraic thinking ability. This is shown by their performance in each indicator of algebraic thinking ability.
Error Patterns in Solving Ordinary Differential Equations: A SOLO Taxonomy-Based Analysis of Pre-Service Mathematics Teachers Novitasari, Dwi; Pramestie Wulandari, Nourma; Lu’luilmaknun, Ulfa
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.v7i2.9491

Abstract

This study aims to analyze students' errors in solving Ordinary Differential Equations (ODE) problems based on the SOLO taxonomy (Structure of the Observed Learning Outcome). This qualitative descriptive research involved 29 students from the Mathematics Education Study Program at the University of Mataram. Data were collected through essay tests and interviews, then analyzed using the SOLO taxonomy classification and error types based on the framework by Subanji and Mulyoto. The results show that most students were at the pre-structural, uni-structural, and multi-structural cognitive levels, with a dominance of conceptual and technical errors. Common mistakes included the use of incorrect formulas, errors in algebraic manipulation, and weak fundamental calculus skills. A lack of understanding of prerequisite concepts such as algebra and calculus was identified as the main factor contributing to these errors. These findings highlight the importance of strengthening basic concepts and implementing learning strategies based on the SOLO taxonomy to improve students' understanding of ODE topics
Studi Implementasi GeoGebra dan Blok Manipulatif sebagai Representasi Visual dan Konkret dalam Pembelajaran Pecahan Tyaningsih, Ratna Yulis; Salsabila, Nilza Humaira; Triutami, Tabita Wahyu
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.v7i2.9498

Abstract

Difficulties in understanding fraction concepts remain a significant challenge for elementary school students, primarily due to limitations in connecting abstract ideas with concrete experiences. This study aims to examine the implementation of GeoGebra and manipulatives blocks as visual and concrete representations in teaching fractions at SD Negeri 35 Ampenan. Employing a case study approach, the research involved 25 fourth-grade students as participants. Data were collected through observations, written tests, in-depth interviews, and documentation. The findings reveal: (1) an improvement in learning outcomes, indicated by an increase in average test scores from 72.2 (using manipulatives blocks) to 78.4 (using GeoGebra), representing an 8.6% gain; and (2) interviews with three students of varying ability levels suggested that concrete media (manipulatives blocks) were more effective for students with lower mathematical ability, while GeoGebra was preferred by students with stronger visual and conceptual skills. These findings suggest that the use of multiple representations can bridge understanding gaps and provide a more adaptive learning experience, particularly in teaching fractions. The study recommends integrating both visual and concrete media into mathematics instruction to enhance instructional effectiveness and strengthen student engagement.
Strategi Belajar Mahasiswa dalam Menyelesaikan Masalah Program Linier dengan Dualitas Wulandari, Nourma Pramestie; Kurniati, Nani; Salsabila, Nilza Humaira
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.v7i2.9522

Abstract

Duality in linear programming is an essential concept in optimization-based decision making. However, many undergraduate students still struggle to understand and solve duality problems, especially when converting primal to dual models and interpreting their results. This study aimed to explore the learning strategies used by fifth-semester students in solving duality problems. A qualitative case study approach was employed, involving 36 students from a mathematics education program. Data were collected through classroom observations, open-ended tasks, reflective writing, and interviews, and analyzed thematically. The findings revealed that most students (52.8%) used procedural repetition strategies, while others adopted conceptual elaboration (30.6%) and organizational strategies (16.6%). Students who used elaboration and organizational strategies demonstrated deeper conceptual understanding and greater problem-solving flexibility. These results suggest that procedural approaches still dominate, and instructional efforts should focus on fostering more reflective and meaningful learning strategies among students.
Challenges in Designing Learning Media among Mathematics Education Students Salsabila, Nilza Humaira; Novitasari, Dwi; Triutami, Tabita Wahyu; Lu’luilmaknun, Ulfa; Kertiyani, Ni Made Intan; Oktavihari, Dita
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.v7i2.9630

Abstract

This study aims to describe the challenges or difficulties faced by mathematics education students in designing learning media, especially student worksheet, interactive presentation slides, and educational video. This research is a quantitative descriptive research with the subjects in this study are 4th semester students enrolled in the Mathematics Learning Technology course, as many as 23. Data collection was carried out through distributing questionnaires to students regarding their difficulties in developing media. The results showed that students experienced the most difficulties in developing educational videos compared to student worksheet, interactive presentation slides. The main difficulties in educational videos include technical skills such as editing, flow design, and application usage.
Pengembangan LKPD Berbasis Masalah Bilangan Cacah Dengan Konteks Pasar Terapung Siring Menara Pandang SD/MI Oktavia, Ela; Karim, Karim; Suryaningsih, Yuni
Mandalika Mathematics and Educations Journal Vol 7 No 3 (2025): Edisi September
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v7i3.8985

Abstract

Mathematics plays a crucial role in daily life, and understanding basic mathematical concepts such as whole numbers is vital for students in developing problem-solving skills. Additionally, students can gain an understanding of and appreciation for the cultural values present in their community. By integrating student worksheets that are linked to culture, especially the Banjar Floating Market Culture, it is hoped that students will become more aware of the cultural elements in their surroundings. Therefore, the aim of this study is to create a problem-based student worksheets focused on whole numbers with the context of the Siring Menara Pandang Floating Market for fourth grade elementary school students that is valid, practical, and effective. The research methodology employed is Research and Development (R&D), utilizing the ADDIE framework for the development process. The research instruments applied include validation sheets, student response questionnaires, and evaluation tests. Validity testing was conducted by three validators, consisting of two teachers and one university lecturer. Practicality testing was carried out through student response questionnaires, while effectiveness was determined based on the results of evaluation tests. The validity test yielded a score of 3.61, categorized as highly valid. The student response questionnaires returned a score of 3.71, classified as highly practical. The evaluation test results showed an 85% success rate, categorized as effective. Based on these findings, it can be concluded that the problem-based student worksheets on whole numbers for fourth grade elementary school students is deemed valid, practical, and effectiveI

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