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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 8 Documents
 1 
Search results for , issue "Vol 7, No 2 (2024): August 2024" : 8 Documents clear
Improving Mathematical Argumentation Ability and Sociomathematical Norms Using Missouri Mathematics Project on Trigonometric Ratios Nurruzzahra, Rezka Andiva; Maarif, Samsul
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.v7i2.118

Abstract

In quality mathematics learning, there must be interaction between learners and educators. The interaction referred to in this study covers mathematical argumentation and sociomathematical norms. Mathematical argumentation ability: pay attention to signs, notations, and symbols from mathematics and how to negotiate to understand mathematical ideas. This study aims to analyze the improvement of mathematical argumentation ability and sociomathematical norms using the Missouri Mathematics Project on trigonometric ratios material. This research approach is quantitative. At the same time, the method used is a quasi-experiment with a non-equivalent control group design. The sample in this study was 51 learners. Data were analyzed by Two-Way ANOVA test with the conclusions: 1) The improvement of mathematical argumentation ability using the Missouri Mathematics Project learning model is better than the problem-based learning model; 2) There are differences in mathematical argumentation ability based on aspects of sociomathematical norms (high, medium and low); 3) There is no interaction between learning model and sociomathematical norms on mathematical argumentation ability.
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.
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.
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.
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.
Analysis Of Students' Cognitive Process Through Minimum Competency Assessment Mathematics Question in Grade 8^th in Junior High School Laelasari, L; Utami, Tia
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.v7i2.114

Abstract

This study aims to analyze students' cognitive processes through minimum competency assessment questions. This study uses a qualitative research approach with a descriptive method to describe the mental process of students using minimum competency assessment questions that are carried out at the beginning of learning. The results showed that 13 out of 22 students could use previous knowledge and explain how they used it to understand the text, 21 could identify important and relevant ideas, and as many as 9 students were able to make realistic inferences and cite supporting evidence. Most students cannot yet think mathematically and can solve the given problems. This study also found that as many as 19 students were able to define all vocabulary and be able to explain it. Eighteen participants could not understand the multimodal text, and showed that 11 students were quite able to show how to understand the text even though it was incomplete. Teachers can use this data for initial data as a reference for implementing learning strategies for future teaching.
Character Education Values in the Process of Mathematical Problem-Solving, Understanding, Connection and Communication: Students’ Perspectives Nurhayati, Suci; Asria, Vingky Zulfa; Yunianika, Ika Tri
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.v7i2.98

Abstract

The purpose of this study is to describe students' perceptions of character values that are integrated into each activity of Mathematical Power, which consists of problem-solving, understanding, connecting, and communication. This qualitative research collected data with a survey of students about their perceptions and interviews with mathematics teachers. The sample of schools were selected based on the types of schools: faith-based school and non-faith-based school located in Yogyakarta city. From the four selected schools, 61 samples of grade XI students and 4 mathematics teachers in each school were involved in this study. After the data was collected, the survey data was analyzed descriptively, and the interview data was analyzed using data reduction, data collection, and conclusions. Based on the results of students’ perceptions, character values have been widely felt by most students, with the largest percentage in mathematical communication activities. Non-faith-based schools scored higher than faith-based schools in students' perceptions of character values in all four mathematical activities.

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