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Keremata Lede, Yulius
Pendidikan Matematika Universitas Katolik Weetebula
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Journal : Indo-MathEdu Intellectuals Journal

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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 Kemampuan Berpikir Reflektif Siswa dalam Menyelesaikan Soal Cerita pada Materi Layang-Layang Ditinjau dari Gaya Belajar Siswa SMP Swasta Bukambero Malo, Anjelina Deviana; Lede, Yulius Keremata; Making, Samuel Rex M.
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.v6i4.3451

Abstract

This study aims to analyze students' reflective thinking skills in solving story problems on kite material reviewed from Visual, Auditory and kinesthetic learning styles. The method used in this study is descriptive qualitative. The subjects in this study were 15 students of grade VII of Bukambero Private Middle School. The subjects of the study were selected by purpose sampling by looking at the criteria for high, medium and low reflective thinking ability categories for each learning style. The object of this study is students' mathematical reflective thinking skills in solving story problems on kite material reviewed from learning styles. The data collection techniques used were Questionnaires/learning style questionnaires, reflective thinking ability tests, and interviews. Data analysis techniques used data reduction, data presentation and drawing conclusions. The results of the study using reflective thinking indicators showed that students with visual learning styles and students with Auditory learning styles were only able to meet the Reacting and comparing indicators, so this subject had moderate reflective thinking skills. while students with kinesthetic learning styles were able to meet all the Reacting, comparing and contemplating indicators. So it can be stated that students with kinesthetic learning styles have high reflective thinking skills compared to visual and auditory learning styles.
Analisis Kemampuan Pemecahan Masalah Matematis Siswa Kelas VII Pada Materi Bentuk Aljabar Menggunakan Model Pembelajaran Problem Based Learning di SMP Kristen Palla Dedo, Jefrian Rivaldi; Lubur, Dorothea N. L.; Making, Samuel Rex M.; Lede, Yulius Keremata
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.v6i4.3598

Abstract

This study aims to analyze the mathematical problem-solving abilities of seventh-grade students at SMP Kristen Palla on the topic of algebraic expressions using the Problem Based Learning (PBL) model. This research employed a qualitative descriptive approach involving 20 student participants. Data were collected through problem-solving tests and interviews based on Polya's problem-solving steps: understanding the problem, devising a plan, carrying out the plan, and reviewing the result. Data analysis techniques using the Miles & Huberman model, namely; data reduction, data presentation, and drawing conclusions. The results showed that 10 students (50%) demonstrated high problem-solving abilities and achieved mastery, 6 students (30%) were in the medium category, and 4 students (20%) were in the low category. Based on the minimum mastery criterion (KKM) set at 75, 10 students (50%) met the standard, while the other 10 (50%) did not. The PBL model effectively supports students in developing critical thinking and problem-solving skills, making learning more meaningful and contextual. This study is expected to serve as a reference for teachers in implementing effective instructional strategies to enhance students' mathematical problem-solving abilities
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.
Penerapan Model Project Based Learning untuk Meningkatkan Hasil Belajar Siswa pada Mata Pelajaran IPA Kelas V SDN Potto Katillu Lende, Trimurti Elvin; Lede, Yulius Keremata; Engge, Yohanes; Milla, Daindo
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.v6i4.3691

Abstract

The aim of this research is to improve learning outcomes by using the project-based learning model for fifth-grade students at SDN Potto Katillu. The research method used is Classroom Action Research conducted in cycle 1 and cycle 2. The subjects of the research are 22 fifth-grade students. The data collection techniques used in this research are learning outcome tests and observations. The data analysis technique used is qualitative descriptive analysis. The students' learning outcomes showed improvement from cycle 1 to cycle 2. The learning outcomes in cycle I showed that the number of students who passed was 10 people (52.63%), while those who did not pass numbered 9 people (47.37%). In cycle II, there was an increase in the number of students who passed to 17 people (89.47%). Meanwhile, those who did not pass were 2 people (10.53%). Based on these research results, it can be concluded that the PjBL model applied was successful.
Analisis Pemahaman Konsep Matematika Pada Materi Bentuk Aljabar Setelah Pembelajaran Dengan Model Numbered Heads Together Siswa Kelas Vii Smp Swasta Rangga Rame Thoma, Theresia Novita Yeli; Lede, Yulius Keremata; Napu, Timotius Woda; Making, Samuel Rex Mulyadi
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.v6i4.3752

Abstract

This research aims to evaluate the understanding of seventh-grade students at Rangga Rame Private Junior High School regarding mathematical concepts, particularly those related to algebraic expressions. Three seventh-grade students were selected for this qualitative descriptive study based on their conceptual knowledge test results. The ability levels of the three students are categorized as high, medium, and poor. Data collection techniques used structured interviews and tests. Data analysis techniques involved data reduction, data presentation, and data conclusion. The research results show that the differences in students' understanding of mathematical concepts result in grouping students into three levels. The indicators of conceptual understanding found include: the ability to explain concepts both verbally and in writing; grouping objects based on certain criteria; applying concepts procedurally; connecting concepts to solve problems; and presenting concepts in various representations, including graphs, tables, and diagrams. Eighteen students participated in the test; six of them were in the high group, four in the medium group, and the remaining six in the low group. The low level of knowledge is caused by several factors, including a lack of understanding of the questions, rushed answers, and inadequate mastery of the subject matter during the learning process.
Analisis Kemampuan Matematika Siswa SMAS Manda Elu dalam Menyelesaikan Soal pada Materi Perbandingan Trigonometri untuk Siswa Kelas X Lede, Yulius Keremata; Moza, Florida; Zogara, Leonard
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.v6i5.3702

Abstract

The purpose of this study was to determine the Mathematics ability of SMAS Manda Elu Students in solving Problems on Trigonometric Comparison Material for Grade X Students. The research method is a survey method. The subjects of the study were 28 grade X SMAS Manda Elu students and 3 students were selected based on the same answer category to be confirmed through interviews. Data collection techniques in this study were documentation and interviews. The research instrument was a test question taken from the trigonometric comparison material and interview guidelines related to problem-solving skills. This data was analyzed using three types, namely Data Reduction, and making conclusions. Students are not familiar with Polya's steps, none of them write from what is known and asked, let alone looking back because they are not used to it. Students also usually write formulas directly and determine the final result or answer to the question. So the results of this study found that not even 50% of students' ability to solve trigonometric comparison problems through Polya's steps.
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.
Co-Authors A, Klarisa Riavinola M ama, alfianus tamo Ama, Enos Tamo Ansila Ina Kii Ansila Ina Kii Apshinta Milla Ate, Arista Ngindi Ate, Dekriati Bani, Theresia Bili, Nopliana Bora, Agustinus Rina Bota, Mariana Ra Bulu, Agustina Rovina Bulu, Martina Sumiyati Cordia, Grassiana Misseri Daga, Agustinus Tanggu Daindo Milla Daindo Milla Damma, Stefanus Umbu Dangu, Ivan Aris Nono Dedo, Jefrian Rivaldi Deta, Dominggus Umbu Dodo, Arista Ina Dona, Yunita Elkarisme, Yunice Elyakim N.S. Patty Elyakim Nova Supriyedi Patty, Elyakim Nova Supriyedi Engge, Yohanes Fachry Abda El Rahman Florida Moza, Florida Geterudis Kerans Geterudis Kerans Ghogha, Heronima Ghunu, Yosefina Ina, Yosefa Natalia Inna, Maya Tamo Jarang, Nelson Tidi Kadi, Susanti Kaleka, Yohanes Umbu Kalembu, Stefania Sulastri kerans, geterudis Kholid Kholid Kii, Ansila Ina Kira, Emirensiana Irene Lali Klarisa Riavinola M. A Klarisa Riavinola Miku Ate Ko’a, YuliusRonal Datu Laga, Ariyanti Ubu Lazarus Andrianus Pati Zaghu Lende, Mersiana S. Kaka Lende, Petrus Lende, Trimurti Elvin Lero, Yuvita Susanti Lika, Yulita Likka, Yusril Enga Lubur, Dorothea N. L. Lubur, Dorothea Novia Ludo Lubur, Dorothea Noviana Ludo Making, Samuel Making, Samuel R. M. Making, Samuel R.M. Making, Samuel Rex Making, Samuel Rex M Making, Samuel Rex M. Making, Samuel Rex Muliyadi Making, Samuel Rex. Mulyadi Malo, Anjelina Deviana Malo, Sarmolus Mariana Ra Bota Mbayu, Dominggus Wuru Milla, Apshinta Mone, Ariyanti Nabuasa, Meriana Napu, Timotius W. Napu, Timotius Woda Napu, Timotius Wonda Nopliana Bili Paramita Rusadi Legu Awa Paramita Rusadi Legu Awa Patty, Elyakim N.S. Raja, Angelina Laja Saga, Eklesia Bodu Samuel Making Samuel R. M. Making Samuel R.M. Making Samuel Rex M. Making Samuel Rex M. Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Samuel Rex Mulyadi Making Setiawi, Agustina Purnami Sophi Kondi Tanggu, Daud Thoma, Theresia Novita Yeli Wada, Marselina Wara, Destriyati Saputri Lende Watu, Angelita Yessi Duka Walu Wilhelmus Yape Kii Wilhelmus, kii Yape Wohangara, Ayub Umbu Tonga Yawu, Yoas Gali Yohanis Umbu Kaleka, Yohanis Umbu Yublina Jeni Dapa Yuliana Sesi Bitu Yulita Lika Yunice Elkarisme Zaghu, Lazarus Andrianus Pati Zogara, Leonard