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INDONESIA
IndoMath: Indonesia Mathematics Education
Published by Universitas Sarjanawiyata Tamansiswa
ISSN : 26145103     EISSN : 26145111     DOI : http://dx.doi.org/10.30738/indomath
Core Subject : Humanities, Education,
Humanities Education
Indomath publishes theoretical or empirical studies related to specific teaching and learning in the field of Mathematics Education. Indomath received publications from teachers, lecturers, and students as well as from observers and researchers of mathematics education. The scope of scientific articles that can be published in Indomath is as follows: Mathematics Learning Model, Media Learning Mathematics Curriculum in Mathematics Teaching, Assessment and Evaluation in Mathematics Teaching, Ethnomatics in Mathematics Learning Design Didactical in Mathematics Learning Lesson Study in Mathematics Learning Single Subject Research in Mathematics Education
Arjuna Subject : Umum - Umum
Articles 67 Documents
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Optimizing Tofu Production with Contextual Learning and Linear Programming Yulianto, Dwi; Juniawan, Egi Adha
IndoMath: Indonesia Mathematics Education Vol 7, No 2 (2024): August 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i2.97

Abstract

The study of contextual learning implementation introduces mathematical concepts by linking the material with real-life situations or contexts in Rancamulya Village, West Java, commonly known as Tofu Village, where tofu is a staple food and an affordable source of nutrition favored by the wider community. Through research using linear programming simplex method, an optimal solution was found to maximize tofu production, achieving a maximum profit of Rp 1,480,000 with the production of 364 white and 182 yellow tofu boards. Seventy-two mathematics education students at La Tansa Mashir University, Rangkasbitung, conducted this project-based ethnomathematics study. The research employed an ethnographic approach with data collection techniques through observation, documentation, and interviews. Data analysis was performed using a mixed-method approach combining qualitative and quantitative methods. The quantitative data revealed a significant difference in mathematical critical thinking skills between the Problem-Based Learning (PBL) and Numbered Heads Together with Student-Constructed Criteria for Success (NHT-SCCS) learning models. Students taught with the PBL model demonstrated higher critical thinking skills compared to those using the NHT-SCCS model.
Analysis of Learning Obstacles in the Topic of Geometric Transformations Aminah, Neneng; Rahadi, Ikman Nurhakim; Noto, Muhammad Subali; Rosita, Cita Dwi
IndoMath: Indonesia Mathematics Education Vol 7, No 1 (2024): February 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i1.93

Abstract

The purpose of this research is to identify the learning obstacles experienced by students at Nurul Huda Jannatun Vocational High School. This study is a qualitative research that uses the Didactical Design Research (DDR) model. The population of the study consists of 32 students from the 11th grade of Nurul Huda Jannatun Vocational High School, while the sample is taken from 3 students using purposive sampling method. The research findings reveal the following student obstacles: lack of readiness to receive learning due to a lack of motivation in learning, lack of knowledge of formulas to solve problems, misinterpretation of problems leading to errors in calculations, lack of understanding of the concepts presented in the given problems, inability to answer questions involving two transformation concepts, inability to answer story problems, perception of teachers explaining the material too quickly and lacking easily understandable illustrations, and inadequate teaching materials that do not explain the material in detail for each part
The Impact of Realistic Mathematics Education-based Student Worksheet for Improving Students’ Mathematical Problem-Solving Skills Tumangger, Wana Rukmana; Khalil, Ibrahim Alhussain; Prahmana, Rully Charitas Indra
IndoMath: Indonesia Mathematics Education Vol 7, No 2 (2024): August 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i2.122

Abstract

Mathematical problem-solving ability is a critical skill required to meet the challenges of the 21st century, making it imperative for Indonesian students to master these skills. However, international assessments have consistently shown that Indonesian students' competencies, particularly in mathematical problem-solving, remain low. Research attributes this deficiency to the lack of connections between mathematical concepts and real-life applications, which are essential for enhancing problem-solving skills. On the other hand, Realistic Mathematics Education (RME) is a learning approach that emphasizes the integration of real-world contexts in learning activities and has been shown to improve these skills. Therefore, this study aims to develop a student worksheet based on the RME approach to enhance students' problem-solving abilities. The development process followed the ADDIE model, which includes the stages of analysis, design, development, implementation, and evaluation. Various research and development instruments were employed, including validation by material and media experts, student assessments of the electronic worksheets, and pre-test and post-test evaluations. Data collection methods encompassed both non-test and test techniques. The results demonstrate that the developed student worksheets are valid, practical, and effective. The validity was confirmed by high average scores from material and media expert validators, categorizing the worksheets as valid. Practicality was supported by positive student assessments, placing the worksheets in the practical category. These findings indicate that the developed worksheets significantly enhance students' problem-solving abilities. This study provides empirical evidence supporting the effectiveness of the RME approach in improving mathematical problem-solving skills among Indonesian students. It also offers a theoretical and practical framework for advancing mathematics education in Indonesia, advocating for the adoption of learning approaches that better address the demands of the 21st century. Detailed analysis of the product's acceptability and impact will be discussed further in the paper.
Study of Ethnomatematics Sendratari Ramayana at the Ramayana Ballet in Prambanan Temple Kinanti, Theresia Restu; Nugraha, Adhi Surya; Rudhito, Marcellinus Andy
IndoMath: Indonesia Mathematics Education Vol 7, No 2 (2024): August 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i2.108

Abstract

The ethnomathematics learning approach is used to preserve culture in schools. In addition, it also makes it easier for students to understand abstract mathematical concepts. The culture studied was the Ramayana ballet in the Prambanan temple area. According to Bishop, this research aims to discover fundamental aspects of mathematics. The author used a qualitative approach and a literature study to collect data. In comparison, the data collection technique used in this research is library data collection obtained from literature studies that contain related sources and references. The data analysis techniques used in this research are data collection, reduction, and conclusion. The research results are 1) counting, number of accessories, and angles formed. 2) location and floor pattern. 3) measurement, duration, stage area. 4) designing, floor pattern properties, jarik motifs. 5) playing, the way dancers do not collide, and the provisions of the storyline. 6) explaining the Ramayana storyline and costume meaning.
Development Studies: E-Module Based on Ethnomathematics to Improve Problem-Solving Ability at Junior High School10 Metro Lita, Rahma Nur; Mustika, Juitaning
IndoMath: Indonesia Mathematics Education Vol 7, No 1 (2024): February 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i1.99

Abstract

There are still many students who need help solving mathematical- problems. The need for attractive, easy-to-understand, and culture-based learning is essential for students. The objectives of this research are as follows: 1) to determine the stages of development of ethnomathematics-based e-modules, and 2) to find out whether ethnomathematics-based e-modules can improve problem-solving abilities at state junior high school 10 Metro. The research method uses a design research and development study type, including preliminary and prototyping stages (formative evaluation). According to the subject matter, media, and cultural experts, it is "highly feasible". Suggestions and comments from revised validators display feasibility. Meanwhile, the attractiveness of the e-module is evident in how students effectively use it. The results of the N-gain value analysis with an average of 0.8 indicates that ethnomathematics-based e-modules can significantly improve students' problem-solving abilities with high criteria. The e-module has met the criteria as a suitable medium for learning.
Analysis of Numeracy Literacy Skills of Grade IV Students on Geometry Materials in Elementary Schools Iruntyasari, Nevy; Nuraini, Ni Luh Sakinah; Mas'ula, Siti
IndoMath: Indonesia Mathematics Education Vol 7, No 1 (2024): February 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i1.81

Abstract

The research was conducted to describe the numeracy literacy abilities of class IV students in geometry material at SDN Kesatrian 1 Malang City and techniques for solving numeracy literacy questions in geometry material. The type of research is qualitative research with a case study method. The data collection technique goes through two stages: tests and interviews. The data collection instruments used in this research were test questions and interview grids. Data analysis using student test result documents and interview results using the Miles & Huberman model, namely data reduction, presentation and conclusion. Students with high numeracy literacy abilities have communication skills and context mathematization abilities, students with moderate numeracy literacy abilities can choose problem-solving strategies but do not carry out communication skills, and students with low numeracy literacy abilities do not meet the indicators for numeracy literacy abilities. The problem-solving technique students use is the formula for the perimeter and area of a rectangle. This research aims to help teachers organize mathematics learning based on numeracy literacy. 
Grade 8 Learners’ Impediments When Learning Geometry: A Case Of One High School, Eastern Cape South Africa Chiphambo, Shakespear Maliketi
IndoMath: Indonesia Mathematics Education Vol 7, No 2 (2024): August 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i2.106

Abstract

The study aimed to identify and understand the specific challenges that Grade 8 learners face in learning geometry within the context of one high school in the Eastern Cape region of South Africa. The study explores Grade 8 learners’ impediments when learning geometry. The study uses van Hiele’s geometric thinking theory which provides the framework for how learners learn geometry. The study employed a qualitative approach guided by the case study design and subjected textual qualitative data to thematic content analysis. Nine Grade 8 learners were purposely selected from the cohort of 56 learners using diagnostic test results. The study reveals impediments that inhibit learners from performing well in geometry, such as lack of mathematical language proficiency, failure to make meaning of the mathematical concepts and terminology, lack of English language proficiency, poor teaching methods, and learners’ negligence of mathematical rules. The study recommends mathematics teachers implement language support strategies for learners, develop learners’ conceptual understanding of geometry, emphasize symbolic representation when teaching, support learners’ English language development, engage learners with geometry rules, make use of differentiated instruction, promote a growth mindset, and ask the Department of Education to provide professional development for educators.
Utilization Of Origami As A Learning Strategy In Improving Students' Numeracy Skills Indrawatiningsih, Nonik; Amala, Ayyukum Akhsanu; Saskiyah, Bela Alimatus; Nuzula, Shafalma Firdaus; Rohmah, Silatur
IndoMath: Indonesia Mathematics Education Vol 7, No 1 (2024): February 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i1.101

Abstract

Based on scientific studies that have been conducted, data shows that the achievement of Indonesian students in the numeracy aspect is low. This study aims to improve students' numeracy skills through the utilization of origami paper media in the learning process. The type of research is descriptive qualitative. The subjects in this study were 5th grade students at SDN Alastlogo 1 Lekok, Pasuruan Regency, totaling 25 people. The instruments used were the Minimum Competency Assessment (AKM) pretest and posttest sheets and field notes. The source of data in this study came from the results of the pretest and posttest of the Minimum Competency Assessment (AKM Class). The data collection technique used is to carry out the AKM Pretest. Then make a learning strategy for flat building material using origami media to students. After that, the Class AKM Posttest was conducted as a student evaluation. The data analysis technique used is comparative analysis. In addition, analyzing each learning process using folding paper or origami media, to determine the effectiveness of learning implemented in the study. The results of this study show that there is an increase in students' numeracy skills by 80%. Students can answer correctly from the flat building questions tested on the AKM Posttest, whereas previously in the AKM Pretest, only 20% of students could answer correctly. This proves that folding paper or origami media is very effective to help improve students' numeracy skills regarding flat shapes.
Implementation Of Ethnomathematics Using the Trello Application to Increase Students’ Numeracy and Digital Literacy Kusuma, Dianne Amor; Delima, Nita; Widodo, Sri Adi; Dwipriyoko, Estiyan
IndoMath: Indonesia Mathematics Education Vol 7, No 1 (2024): February 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i1.86

Abstract

This research is motivated by technological advances that are developing more rapidly so that it can be used to improve students’ numeracy and digital literacy. This research aimed to analyse the impact of applying Ethnomathematics using the Trello application in increasing university students' numeracy literacy and digital literacy. This research used a survey method on 56 students. The research instruments used were a numeracy literacy test in the mathematics-chemistry one course, a digital literacy questionnaire, and an interview sheet. This research shows that implementing ethnomathematics utilising the application of Trello has several advantages, including increasing university students' numeracy and digital literacy.
The Influence of Realistic Mathematics Education on the Mathematical Problem-Solving Ability and Learning Independence of Class V Students at Jarakan State Elementary Schools Yuniartika, Shani; Trisniawati, T; Anggreini, Dewi; Silvianti, Fitrilia
IndoMath: Indonesia Mathematics Education Vol 7, No 2 (2024): August 2024
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/indomath.v7i2.107

Abstract

This research aims to describe the influence of the realistic mathematic education approach model on students' mathematical problem-solving abilities and define the impact of the realistic mathematic education approach on students' learning independence. The sample used in this research was the VA and VB classes of Jarakan State Elementary School, with 35 students in each class. This type of research is quasi-experimental research. The instruments used in this research were test questions on students' mathematical problem-solving abilities and learning independence questionnaires. The research test carried out by the researcher used a significance level of 5% so that if the significance value is less than 0.05, it can be concluded that the realistic mathematic education approach positively affects students' mathematical problem-solving abilities. The learning independence test can be seen by comparing the total score, mean value, and percentage of the level of student response contained in the descriptive statistical analysis. If the score, mean, and percentage of student response level percentage of the experimental class are higher than the control class, it can be concluded that the realistic mathematic education approach has a positive influence on student learning independence.

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