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All Journal Jurnal Ilmiah Mandala Education (JIME) Journal of Classroom Action Research Kognitif: Jurnal Riset HOTS Pendidikan Matematika Indo-MathEdu Intellectuals Journal
Lubur, Dorothea Novia Ludo
Universitas Katolik Weetebula
Arts Humanities Computer Science & IT Education Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Social Sciences Other

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Journal : Indo-MathEdu Intellectuals Journal

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Analisis Kesalahan Siswa dalam Menyelesaikan Soal Identitas Trigonometri di Kelas XI MIA SMAK St. Dominikus Tambolaka Ina, Mitalia Tamo; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 5 No. 2 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i2.903

Abstract

This study aims to determine student errors and the causes of student errors in solving trigonometric identity problems in class XI MIA SMAK St. Dominic Tambolaka. The type of research used is qualitative descriptive. The subjects of the study were 18 class XI MIA students at SMAK St. Dominikus Tambolaka. Data collection techniques use written tests and interviews. The results showed the percentage of errors made by students in solving math problems related to trigonometric identity. The causes of student errors include rushing to read math problems, not having the ability to focus attention on learning, not mastering trigonometric identity material, not understanding the formula that should be used, not being careful in carrying out the calculation process, carelessly doing problems because of previous mistakes, and rushing in working on the solving process.
Analisis Kemampuan Komunikasi Matematis Setelah Penerapan PBL Materi Pola Bilangan pada Siswa Kelas VIII SMP Negeri 4 Loura Bani, Theresia; Lede, Yulius Keremata; Making, Samuel Rex Mulyadi; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 5 No. 5 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i5.1988

Abstract

The purpose of this study is to determine students' mathematical communication skills after the application of the problem based learning model of number pattern material in grade VIII students of SMP Negeri 4 Loura. The type of research is a descriptive qualitative method. Data collection uses interviews and documentation. The data analysis process is carried out qualitatively consisting of data reduction, data presentation, and conclusion drawn. The results of the study showed that from each level of the percentage level of the student communication ability category, namely the percentage level of the high category was 20%, medium 20% and low 60%. The impact of this ability is that students do not relearn the material that has been given during learning and do not pay attention to the researcher delivering the material
Ekplorasi Etnomatematika Kain Tenun Kampung Bokuna di Kecamatan Wewewa Dona, Yunita; Lede, Yulius Keremata; Making, Samuel Rex Mulyadi; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 5 No. 5 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i5.1998

Abstract

In general, the North Wewewa Wewewa Woven Fabric of Bokuna Village is passed down from the ancestors and followed until now this Woven Fabric has beautiful motifs made based on daily life and also from nature. Ethnomathematics is a bridge between culture and mathematics, ethmomathematics is adapted by cultural groups to see that the culture contains mathematical aspects. This research aims to find out the concept of geometry in Woven Fabrics. The data collected is in the form of documentation, interviews, and observation results. The type of research used in qualitative descriptive is to describe the mathematical elements contained in woven fabrics. Data collection uses observation and interviews. Data analysis is carried out qualitatively with the stages of data reduction, data presentation, and conclusion drawing. The results of the analysis show that Woven Fabrics are sacred crafts that are inherited from ancestors or from generation to generation. In the study, the researcher found several one-dimensional and two-dimensional buildings. The geometric shapes found by the researcher are: rectangular shape on the entire shape of the woven fabric, an equilateral triangle shape on the mamuli motif, an isosceles triangle shape on the flower motif, a bele ketupat shape on the star motif, a rectangular shape on the entire woven fabric, a square shape on the butterfly motif
Analisis Kesulitan dalam Menyelesaikan Soal Persamaan Linear Satu Variabel dengan Metode Demonstrasi untuk Siswa Kelas VII SMP Negeri 5 Lamboya Raja, Angelina Laja; Making, Samuel Rex Mulyadi; Lede, Yulius Keremata; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 5 No. 5 (2024): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v5i5.2013

Abstract

This study aims to find out the difficulties of students in solving PLSV problems using the demonstration method for grade VII students of SMP Negeri 5 Lamboya. This study uses a qualitative approach with a descriptive method. 14 students as subjects to be researched to the extent to which the students can work on one-variable lienar equation problems. The data collection methods used are tests, interviews, and documentation. Data analysis is carried out qualitatively with the stages of data reduction, data presentation, and conclusion drawing. The results of the study showed that there was still a lack of ability of students to solve PLSV questions that answered the questions correctly and incorrectly. The results of the analysis for problems number 1, 2 and 3 were at the stage of difficulty in interpreting mathematical language (59.66%), the stage of difficulty in using data (64.33%), the stage of difficulty in mastering concepts correctly (66.66%), the stage of difficulty in using calculation operations (66.66%), and the stage of difficulty in drawing conclusions (83.33%). The cause of incompetence is that students do not read the questions carefully so that they make mistakes in writing down what is known and what is asked, so that they are less able to solve problems, in a hurry so that others are incomplete.
Analisis Kemampuan Penalaran Matematis pada Materi Sistem Persamaan Linear Dua Variabel untuk Siswa Kelas VIII B SMP Negeri 6 Kodi Inna, Maya Tamo; Lede, Yulius Keremata; Making, Samuel Rex Muliyadi; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 6 No. 3 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i3.3111

Abstract

The purpose of this research is to determine the mathematical reasoning abilities of students in solving problems on the topic of Systems Of Linear Equations In Two Variables at SMP Negeri 6 Kodi. The type of this research is qualitative research. The subjects of this research are all the students of class VIII B at SMP Negeri 6 Kodi, totaling 29 students. The interview subjects were three students from each category, namely the high, medium, and low categories. The object of this research is for the researcher to understand the mathematical reasoning abilities of the students. The data collection techniques used are written tests, interviews, and documentation. Based on the reserch results, the mathematical reasoning ability on the topic of systems of two variable linear equations (SPLDV) for students in class VIII B SMP Negeri 6 Kodi shows variation in meeting the reasoning indicators. Students with high mathematical reasoning ability are able to meet for mathematical reasoning indicators in solving SPLDV problems. Students with moderate mathematical reasoning ability can meet three indicators, while students with low mathematical reasoning ability can only meet one reasoning indicator in solving SPLDV problems. So, the researcher can conclude that the mathematical reasoning ability of the eighth-grade students of SMP Negeri 6 Kodi is still very low
Eksplorasi Etnomatematika pada Kerajinan Maghana Penda di Kampung Kalembu Kaha Kecamatan Kota Tambolaka Sumba Barat Daya Bota, Mariana Ra; Lede, Yulius Keremata; Making, Samuel Rex Mulyadi; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 6 No. 3 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i3.3260

Abstract

This research aims to explore ethnomathematics in maghana penda crafts in Kalembu Kaha Village, Tambolaka City District, Southwest Sumba. Ethnomathematics is a science used to understand how mathematics is adapted from a culture and serves to express the relationship between culture and mathematics. This type of research is qualitative research with an ethnographic approach. The subject of the study is the place where the data for the research variables are obtained. Data analysis techniques in this study were carried out during and after data collection. The results of the research show that several pandan woven crafts in Kalembu Kaha village contain mathematical concepts such as rectangles, rhombuses, triangles and cylinders which can be used in contextual mathematics learning at school.
Identifikasi Etnomatematika pada Motif Kain Tenun di Desa Weelonda Ina, Yosefa Natalia; Lede, Yulius Keremata; Making, Samuel Rex Mulyadi; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 6 No. 4 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i4.3447

Abstract

This study focuses on identifying ethnomathematics in woven fabric motifs in Weelonda Village, with ethnomathematics understood as the study of the adaptation of mathematics in culture and its interactions. This type of research is qualitative research using an ethnographic approach. The subjects in this study were woven fabric weavers in Weelonda Village, Southwest Sumba Regency, East Nusa Tenggara Province. The data analysis technique in this study was to systematically search for and compile data obtained from interviews, observations, and documentation. The results showed that several woven fabric motifs in Weelonda Village integrate mathematical concepts such as geometry (squares, rhombuses, triangles), making them relevant for contextual mathematics learning.
Analisis Level Berpikir Berdasarkan Taksonomi Solo pada Materi SPLDV Siswa Kelas VIII di SMP Negeri 1 Waikabubak Ghunu, Yosefina; Making, Samuel Rex Mulyadi; Lede, Yulius Keremata; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 6 No. 4 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i4.3604

Abstract

This study aims to determine the level of thinking based on the SOLO Taxonomy on linear equation materials (SPLDV) among eighth-grade students at SMP Negeri 1 Waikabubak. The type of research used is descriptive research with a qualitative approach, and the subjects of this study are the eighth-grade students of class VIII B at SMP Negeri 1 Waikabubak, while the object of this research is the students' level of thinking in solving SPLDV story problems based on the SOLO Taxonomy. Data collection was conducted using written tests, interviews, and documentation. The collected data were analyzed through data reduction, data presentation, and conclusion drawing stages. Based on the results of the data analysis obtained, it can be concluded that the level of thinking of students on SPLDV materials based on the SOLO Taxonomy reaches different levels. According to the research results, the percentage of test results for the level of thinking of eighth-grade students class VIII B at SMP Negeri 1 Waikabubak indicates that students fall into the high category 64% of the students are in the high category, while 29% are in the medium category, and 7% are in the low category.
Analisis Kesulitan Siswa dalam Menyelesaikan Soal Cerita pada Materi Sistem Persamaan Linear Dua Variabel di SMA ST Alfonsus Weetebula Kalembu, Stefania Sulastri; Lede, Yulius Keremata; Napu, Timotius Woda; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 6 No. 5 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i5.3760

Abstract

The second research aims to identify the types of difficulties and to determine the factors causing student difficulties. The type of research used is qualitative descriptive. This research was conducted at SMPK Flos Karmeli in the second semester of the 2024/2025 academic year with 28 students as the research subjects. The data collection techniques used in this research are written tests, interviews, and documentation. The data analysis technique used is qualitative data analysis with stages of data reduction, data presentation, and drawing conclusions. The research results show that the errors are divided into 3 parts, namely Verbal problem difficulty 44.73%, Conceptual difficulty 69.73%, and principle difficulty 89.47%. (1) Verbal problem difficulty occurs when students are not accurate in translating into a Mathematical model, students are not accurate in using the data that will be used, and students are not accurate in drawing conclusions; (2) Conceptual difficulty occurs when students cannot write down what is known and what is being asked, students are confused in representing the problems, for example, a notebook is represented as X and a pencil is represented as y; and (3) Principle difficulty occurs when students are not accurate in using arithmetic operations, and students do not complete the calculations.
Analisis Kemampuan Pemahaman Konsep Matematis Siswa Kelas VIII B SMP Kristen Karuni pada Materi Peluang Wara, Destriyati Saputri Lende; Making, Samuel Rex Mulyadi; Lubur, Dorothea Novia Ludo; Lede, Yulius Keremata
Indo-MathEdu Intellectuals Journal Vol. 6 No. 5 (2025): Indo-MathEdu Intellectuals Journal
Publisher : Lembaga Intelektual Muda (LIM) Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/imeij.v6i5.3928

Abstract

This study aiams to analyze the mathematical concept comprhension capabilities of eight grade students of Karuni Christian Junior High School on the topic of probability. Comprehenson of mathematical concept is a fundamental aspect of matheatics learning that enables students to understand mathematical ideas in depth and apply them in various situations. The topic of probability was chosen because it is considered of the difficult topic by students and requires a strong conceptual understanding. This reaseacrh uses qualitative descritive research methods with a qualitative approach. The reasearch subjects are 26 students of class VIII B of Karuni Christian Junior high school for the 2024/2025 academic year. Data colletion techniques include written tets, interviews, and documenation. The research instruments consist of test questions and interview guidelines developed based on indicators of mathematical concept understanding according to Kilpatrick, Swafford, and Findell. The research result show that students abllity to understand mathematical concepts in the material of probability is in the high category with a percentage 80%, students with a medium abillity are at 75%, and students with low abillity are at 50%. The indicator most masterred by students in the abillity to restate concepts, while the most difficult indicator is presenting concepts in the form of representations.
Co-Authors Ate, Arista Ngindi Bani, Theresia Bota, Mariana Ra Damma, Stefanus Umbu Dominikus Savio Nambers Dona, Yunita Ghunu, Yosefina Ina, Mitalia Tamo Ina, Yosefa Natalia Inna, Maya Tamo Kalembu, Stefania Sulastri Keremata Lede, Yulius Lede, Yulius K. Making, Samuel R. M. Making, Samuel Rex Muliyadi Malo, Sarmolus Nambers, Dominikus Savio Napu, Timotius W. Napu, Timotius Woda Raja, Angelina Laja Samuel Rex Mulyadi Making Tena, Yohanes Fridolin Timotius Woda Napu Wara, Destriyati Saputri Lende