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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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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.
Eksplorasi Etnomatematika pada Artefak Peninggalan Sejarah di Rumah Budaya Sumba Ate, Arista Ngindi; Lubur, Dorothea Novia Ludo; Making, Samuel R. M.; Napu, Timotius W.; 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.v6i5.4056

Abstract

This research aims to explore and understand the mathematical concepts found in historical artifacts at the Sumba cultural house museum. The method used in this study is qualitative with an ethnographic approach. Data collection is done through observation and interviews, and data analysis. The data collection techniques in this research are observation, interviews, and documentation. The main instrument in this study is the researcher themselves, and the tools used are observation guidelines, interview guidelines, and documentation. The data analysis process is carried out through several stages, namely data reduction, data presentation, and drawing conclusions or verification. The research results show that in the Sumba Cultural House museum there are various types of artifacts, including drums, ancient statues, jars, machetes, shields, gongs, tombstones, and various kinds of jewelry. The mathematical concepts applied to the artifacts in the Sumba Cultural House museum are the concepts of flat shapes and solid shapes. The flat shape concepts applied include squares, rectangles, triangles, kites, rhombuses, and circles. Meanwhile, the solid shape concepts applied include cubes, rectangular prisms, cylinders, and cones.
Penerapan Alat Peraga untuk Mengatasi Miskonsepsi Matematika pada Materi Bangun Ruang Siswa Kelas VII SMP Kristen Karuni Damma, Stefanus Umbu; Making, Samuel Rex Mulyadi; Lubur, Dorothea Novia Ludo; Lede, Yulius Keremata
Indo-MathEdu Intellectuals Journal Vol. 6 No. 6 (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.v6i6.4129

Abstract

The purpose of this study is to determine the extent of understanding students in the application of teaching aids to overcome mathematical misconceptions in material on the construction of grade VII students of Karuni Christian Middle School. The type of research used is classroom action research (CAR). The subjects in this research are the class VII and the object of this research is the application of teaching aids to overcome Mathematical misconceptions in the material on shapes of grade VII students of Karuni Christian Middle School. The data collection technique is using tests, in the form of (post-test and pre-test) observation sheet. Data analysis techniques are carried out at the learning completion stage individual and classical. The results of the study can be concluded from both cycles of learning outcomes in using teaching aids for each student in working on test questions have different understandings. This can be seen from the results of the first cycle test of participants students have not been able to solve the given mathematics problems and in the cycle II students can solve the problems they encounter and are able to overcome them misconception.
Analisis Pengaruh Lingkungan Belajar terhadap Prestasi Belajar Matematika Siswa di SMP Kristen Karuni Malo, Sarmolus; Making, Samuel Rex Mulyadi; Lubur, Dorothea Novia Ludo; Lede, Yulius Keremata
Indo-MathEdu Intellectuals Journal Vol. 6 No. 6 (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.v6i6.4149

Abstract

This Research aims toanalyze the influece of the learning environment on the mathematics learning achievent of class VIIIA students at Karuni Christian Middle School. The learning environment in question includes physical, social, psychological aspects, as well as the learning methods applied. The research medhod used is a quantitative approach with data collection techniques through quesrionnaires and documentationnof students’ UAS scores. The research sample consisted of 27 students, research time was the even semester of the 2024/2025 academic year. Data analysis was carried out using descriptive statstics, simple linear regression tests, and pearson correlation tests eith the help of the SPSS aplication. Thr resarch results show that students’ perceptions of the learning environment are classified as good with an average score of 4.29 (scale 1-5). The average student mathematics achievement score was 74.69. the pirso correlation test shows that there is a positive and significant relationship between the learning environment anf mathematics learning schievement with a correlation coefficient (r)= 0.65 and significant (p)= 0.001. This means that the higher the mathematics learning achievement achievend.
Meningkatkan Kemampuan Berpikir Kritis Siswa Kelas X di SMA Swasta Bukambero pada Materi Sistem Persamaan Linear Dua Variabel dengan Model Pembelajaran Problem Based Learning Tena, Yohanes Fridolin; Making, Samuel R. M.; Lede, Yulius K.; Lubur, Dorothea Novia Ludo
Indo-MathEdu Intellectuals Journal Vol. 6 No. 6 (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.v6i6.4263

Abstract

This study focuses on improving the critical thinking skills of tenth-grade students at SMA Swata Bukambero on the subject of two-variable linear equation systems using the problem-based learning model. This study used the Classroom Action Research method, involving 30 students from class XA as research subjects. The object of this study was to improve students' critical thinking skills in solving problems on SPLDV. This study was conducted in two cycles with the stages of planning, implementation, observation, and reflection. Data were collected through observation sheets and test questions, then analyzed qualitatively and quantitatively. The results of the analysis showed positive changes, including an increase in student enthusiasm in participating in the lesson. Based on the average value of the concept understanding test in cycles I and II, the number of students who completed the first cycle was 13 students with a classical completion percentage of 43.4%, while in cycle II there were 25 students who completed the classical completion percentage of 83.4%. From the above results, it can be concluded that the problem-based learning model can improve students' critical thinking skills on the subject of two-variable linear equation systems.  
Analisis Proses Pembelajaran Matematika dengan Pendekatan Metakognitif-Diskursif Menggunakan Sistem Kategori Napu, Timotius Woda; Lubur, Dorothea Novia Ludo; Nambers, Dominikus Savio
Kognitif: Jurnal Riset HOTS Pendidikan Matematika Vol. 4 No. 1 (2024): January - March 2024
Publisher : Education and Talent Development Center Indonesia (ETDC Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51574/kognitif.v4i1.1285

Abstract

Pendekatan Metakognitif-Diskursif menggunakan sistem kategori memberikan dampak signifikan pada peningkatan pemahaman siswa, pengembangan keterampilan metakognitif, serta meningkatkan interaksi dan diskusi yang produktif dalam pembelajaran matematika. Penelitian bertujuan untuk mengetahui proses pembelajaran matematika dengan pendekatan metakognitif-diskursif menggunakan sistem kategori. Penelitian ini menggunakan pendekatan deskriptif kualitatif dengan melibatkan 18 siswa kelas VIII A SMPK St. Paulus karuni yang mengikuti pembelajaran matematika dengan pendekatan metakognitif-diskursif. Kami menggunakan instrumen berupa lintasan belajar, buku kerja siswa dan lembar catatan harian. Data yang dikumpulkan dianalisis melalui reduksi data, penyajian data, hingga penarikan kesimpulan. Hasil penelitian menunjukkan bahwa aktivitas metakognitif lebih dominan dilakukan antara siswa dengan siswa sendiri tanpa dibantu oleh guru. Proses pembelajaran ini juga tidak terdapat aktivitas diskursif negatif. Sebaliknya guru membangun budaya diskursif yang berdampak signifikan bagi siswa sehingga siswa terlibat dalam diskusi diantara mereka sendiri. Hasil analisis sistem kategori juga menunjukkan bahwa sebagian besar aktivitas belajar didominasi oleh siswa.
Analisis Kemampuan Pemecahan Masalah Pada Materi Fungsi Melalui Penerapan Model Pendidikan Matematika Realistik Lubur, Dorothea Novia Ludo
Jurnal Ilmiah Mandala Education (JIME) Vol 7, No 1 (2021): Jurnal Ilmiah Mandala Education
Publisher : Lembaga Penelitian dan Pendidikan Mandala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58258/jime.v7i1.1728

Abstract

This study aims to determine the problem solving skills of IX grade students of SMPK St. Paulus on the material functions with the Realistic Mathematics Education approach. The method used in this research is descriptive qualitative. The subjects in this study consisted of 10 students of class IX. Students' answers are analyzed and classified according to the type of answer. The following student answers consist of 5 different types of answers. Seven students with the first, second and fourth types of answers fulfill four indicators. One student with the third type of answer only reaches two indicators namely the first and second indicators, and one student with the fifth answer type fulfills three indicators namely the first, third and fourth indicators. Based on the results of the analysis it can be concluded that there are 80% of students fulfilling the four indicators of NCTM, 10% of students do not meet the third and fourth indicators and 10% of students do not meet the second indicator
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.
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