Article Per Year (5 Year)
p-Index From 2021 - 2026
5.758
P-Index
This Author published in this journals
All Journal Journal on Mathematics Education (JME) AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Elemen Journal of Medives KALAMATIKA Jurnal Pendidikan Matematika Wacana Akademika : Majalah Ilmiah Kependidikan IndoMath: Indonesia Mathematics Education Formatif: Jurnal Ilmiah Pendidikan MIPA M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Gema Wiralodra Range : Jurnal Pendidikan Matematika MATH-EDU: Jurnal Ilmu Pendidikan Matematika Jurnal Abdimas Prakasa Dakara Brillo Journal Jurnal Pengabdian Sains dan Humaniora VARIANSI: Journal of Statistics and Its Application on Teaching and Research DEVOTE: Jurnal Pengabdian Masyarakat Global International Journal of Science Education and Cultural Studies Innovative: Journal Of Social Science Research Indonesian Educational Research Journal Hexagon: Jurnal Ilmu dan Pendidikan Matematika Jurnal Infinity Journal of Mathematics Theory and Applications
Aloisius Loka Son
Universitas Timor
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

Published : 50 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 50 Documents
Search

 1   2   3   4   5 
Errors and Their Causes in Solving One-Variable Linear Equations Among Mexican High School Students Morales-Benitez, Leineri; Salgado-Beltrán, Gerardo; Son, Aloisius Loka; García-García, Javier
MATH-EDU: Jurnal Ilmu Pendidikan Matematika Vol. 10 No. 1 (2025): MATH-EDU: Jurnal Ilmu Pendidikan Matematika
Publisher : Program Studi Pendidikan Matematika, Fakultas Ilmu Pendidikan, Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/jipm.v10i1.9391

Abstract

The aim of this study was to identify the errors made by a group of Mexican High School students when solving linear equations, as well as their possible causes. Data collection was conducted through a task-based interview administered to 30 students from a public school in southern Mexico. The results revealed that students made arithmetic errors when solving linear equations, including difficulties in performing operations with integers, handling fractions, applying the distributive property, and transposing terms incorrectly. By analyzing students' reasoning, it was inferred that these errors stem mainly from poor assimilation of arithmetic concepts, affective and emotional factors, and the presence of cognitive obstacles. Additionally, both procedural and conceptual algebraic errors were identified. According to the conceptual framework, these errors originate from limited manipulation of algebraic language, incorrect application of procedural rules, and didactic and cognitive obstacles. These findings encourage reflection on future research aimed at improving the learning of linear equations at the high school level.
Exploring Ethnomathematics in the Activities of Traders at the Niki-Niki Traditional Market Misa, Yeni; Son, Aloisius Loka; Laja, Yosepha Patricia Wua
Brillo Journal Vol 3 No 2 (2024): Ethnomathematics and Resilience in Mathematics Education Innovations
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/bj.v3i2.40

Abstract

Mathematics is a form of culture inherent in all aspects of society's life. In the cultural practices of certain communities, mathematical concepts are involved. There is an intersection between culture and mathematics. Therefore, this research is conducted to explore the mathematical concepts used by traders. This study was conducted at the Niki-Niki Traditional Market. The research subjects consist of 6 individuals, with 2 betel nut sellers, 2 chili pepper sellers, and 2 woven fabric sellers. The data in this study are primary data collected through observation, interviews, and documentation techniques. Data analysis employs the techniques of ethnographic research data analysis, including domain analysis, taxonomic analysis, componential analysis, and cultural theme analysis. The results of the research indicate that there are mathematical concepts of plane geometry and integers in the activities of traders. Concepts of plane geometry include points, rectangles, circles, rhombuses, straight lines, curved lines, and fractal geometry. Meanwhile, mathematical concepts related to integers include sets, counting, addition, subtraction, division, and multiplication.
Mathematical Concepts and Cultural Values in Sonaf Tamkesi: Ethnomathematics Study in a Traditional Village on Timor Island Funan, Fedelia; Son , Aloisius Loka; Siahaan, Meiva Marthaulina Lestari
Brillo Journal Vol 3 No 2 (2024): Ethnomathematics and Resilience in Mathematics Education Innovations
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/bj.v3i2.49

Abstract

Mathematics is a universal science, and it is crucial for everyone to master it, both in terms of its applications and its cognitive patterns. The purpose of this research is to explore the concepts of mathematics and cultural values found in the artifacts of Sonaf Tamkesi Manufui. The study was conducted in the traditional village of Tamkesi, south Biboki District, North Central Timor Regency, in July 2023. The subjects of this study were three community leaders. The type of data collected for this research was primary data obtained through documentation and interviews between the researcher and the respondents. Data analysis was conducted through stages of domain analysis, taxonomy, componential analysis, and cultural themes. The research findings indicate that there are concepts of plane geometry in the artifacts such as trapeziums, rectangles, squares, rhombuses, triangles, circles, cylinders, hexagons, and cubes. Meanwhile, the cultural values of the artifacts in Sonaf Tamkesi are the roof symbolizes harmony, the door symbolizes greatness and respect for ancestors, the pillars symbolize vertical relations with ancestors, the betel-nut container symbolizes service, the clay pot symbolizes a gift from ancestors to the living, the hearth symbolizes balance, and harmony in achieving goals.
PENDAMPINGAN TEKNOLOGI DESTILASI MINYAK KAYU PUTIH UNTUK MENINGKATKAN PRODUKSI MINYAK KAYU PUTIH KELOMPOK TANI FAOT BANO Jefrianus Nino; Yakobus Pffeferius Edvent Saba Agu; Aloisius Loka Son; Handrianus Mentu; I Ketut Sumantar; I Ketut Widnyana; Sekar Wangi
Devote: Jurnal Pengabdian Masyarakat Global Vol. 5 No. 2 (2026): Devote : Jurnal Pengabdian Masyarakat Global, June 2026
Publisher : LPPM Institut Pendidikan Nusantara Global

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/devote.v5i2.5963

Abstract

Maubesi Village is an area with significant potential for the development of eucalyptus (Melaleuca cajuputi). The Faot Bano Farmers Group utilizes this plant through distillation using a simple distillation apparatus made from a rust-proof drum, with an ineffective cooling system, resulting in low eucalyptus oil yield. Recognizing this potential, a eucalyptus oil distillation technology mentoring program was conducted to improve farmers' technical capacity in the production process and to improve the yield and quality of the eucalyptus oil produced. The program methods included knowledge transfer, distillation equipment operational training, and hands-on distillation practice using appropriate and easy-to-operate distillation equipment. The distillation process, which takes 4-5 hours, produces an oil yield of 1.5 liters (1.5%) from 100 kg of eucalyptus leaves. The oil yield increased compared to before the mentoring program, and the oil quality met better visual and aromatic characteristics. This activity proves that the application of appropriate distillation technology and supported by continuous mentoring can increase the production and quality of eucalyptus oil, and has the potential to strengthen the economic independence of the Maubesi Village community based on local resources.
Numeracy across field-dependent and field-independent cognitive styles of junior high students in Indonesia Aloisius Loka Son; Hendrika Bete; Cecilia Novianti Salsinha
Jurnal Elemen Vol 12 No 1 (2026): January
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v12i1.32267

Abstract

This study explores differences in numeracy between junior high school students with Field-Dependent (FD) and Field-Independent (FI) cognitive styles. Using a qualitative descriptive approach, the study was conducted in two junior high schools in Kefamenanu, West Timor, Indonesia. Forty students, evenly distributed across the two schools, participated in the study. Data were collected through numeracy tests and in-depth interviews to examine students’ performance across three numeracy components: understanding, application, and reasoning. The findings reveal that students with an FI cognitive style generally demonstrated competence in all three components, although some experienced difficulties in reasoning tasks requiring critical evaluation and formal justification. In contrast, students with an FD cognitive style tended to achieve only the understanding and application components and faced persistent challenges in progressing to the reasoning component. These results highlight the importance of differentiated numeracy instruction. FD students benefit from visual representations, explicit guidance, and collaborative learning to strengthen foundational, whereas FI students require non-routine and argumentative tasks to enhance higher-order reasoning. This study recommends that educators and future researchers implement inclusive numeracy literacy practices aligned with students’ cognitive styles.
Exploration of Ethnomathematics in the Traditional House of Sonaf Maubes-Insana Maria Fransiska Tas’au; Aloisius Loka Son; Talisadika S. Maifa
Indonesian Educational Research Journal Vol. 1 No. 1 (2023): Education and Learning Strategies in Various Contexts
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v1i1.11

Abstract

The purpose of this study is (1) to explore the mathematical concepts contained in the sonaf-maubes traditional house, and (2) to find out the symbolic meaning contained in the sonaf maubes traditional house. The type of research used is qualitative research with an ethnographic approach. The subjects in this study were people who could provide explanatory information about something that would be examined, including traditional leaders, guardians of the sonaf maubes traditional house and builders as well as the people of the Usfinit tribe who provided information about the history of the sonaf maubes traditional house. Data collection techniques used are interviews, observation, and documentation. Based on the results of the research, it can be concluded that (1) there are mathematical concepts found in the Sonaf-Maubes traditional house, namely flat shapes, spatial shapes, line concepts, counting concepts, distance concepts, and reflections (reflection), (2) there are symbolic meanings in the Sonaf-Maubes traditional houses on the traditional stone pillar main, roof, attic, doors, stoves and so on
Profile of Social Arithmetic Problem Solving Ability of Grade VII Junior High School Students Regina Afeanpah; Aloisius Loka Son; Eduardus B.S. Delvion
Indonesian Educational Research Journal Vol. 1 No. 1 (2023): Education and Learning Strategies in Various Contexts
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v1i1.12

Abstract

The aim of this study is to describe the profile of social arithmetic problem-solving abilities of Grade VII students in one of the junior high schools in the TTU Regency. The type of research used in this study is a qualitative description, and the subjects of the study were 17 students, of whom six were selected for interviews. The six students included two high-ability, two moderate-ability, and two low-ability students. The data analysis model used in this study is the interactive data analysis model developed by Miles and Huberman. The results of the study show that: 1) Students in the high-ability category were able to fulfill all indicators of problem-solving, including understanding the problem, devising a plan, carrying out the plan, and looking back; 2) Students in the moderate-ability category were able to meet the indicators of understand the problem, devising a plan, and carry out the plan, but were unable to meet the indicator of look back; 3) Students with low abilities were able to fulfill the steps of understanding the problem and devising a plan, but were unable to fulfill the steps of carrying out the plan and look back.
The Effectiveness of The Jigsaw-Type Cooperative Learning Model on the Mathematical Communication Ability of Grade X High School Students Neta Deliana Bau; Aloisius Loka Son; Ferdinandus Mone
Indonesian Educational Research Journal Vol. 1 No. 1 (2023): Education and Learning Strategies in Various Contexts
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v1i1.14

Abstract

This study was conducted with the aim of determining the effectiveness of the jigsaw-type cooperative learning model on students' mathematical communication ability. This research uses quantitative methods with a quasi-experimental approach. This research design uses a pretest-postest control group design. The participants of this study were grade X students of one of the high schools in North Central Timor Regency. This research was carried out in the even semester of the 2022/2023 academic year The research instrument was in the form of a mathematical communication ability test and observation sheets. The results of this study show that jigsaw-type cooperative learning is effective in improving students' mathematical communication ability. this is illustrated by the results of research that shows that the achievement and improvement of mathematical communication ability of students who learn through the jigsaw-type cooperative learning model is better than students who learn through conventional models
High School Students' Mathematical Connection Ability Profile in Solving Three-Variable Linear Equation System Problems Based on Cognitive Style Maria Densiana Nailake; Aloisius Loka Son; Eduardus Beo Seso Delvion
Indonesian Educational Research Journal Vol. 1 No. 2 (2023): Improving Learning Quality and Student Abilities
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v1i2.16

Abstract

This study aims to describe the profile of high school students' mathematical connection abilities in solving problems on systems of three-variable linear equations based on cognitive style. The method used in this research is qualitative. This research was carried out in the even semester of the 2022/2023 academic year. The research subjects were 27 class X students at a high school in the North Central Timor district. Subjects were grouped based on FI and FD cognitive styles. Next, 6 subjects were selected, namely 3 FI and 3 FD to take the mathematical connection ability test. The instruments used in this research were GEFT, mathematical connection ability tests, and interviews. Data analysis techniques are data reduction, data presentation, and conclusion. The results of this study show that the mathematical connection abilities of each student are different. Subjects with a field-independent cognitive style meet all indicators of mathematical connection ability, while subjects with a field-dependent cognitive style do not meet all indicators of mathematical connection ability
Improving Problem-Solving Ability through a Constructivist Approach in Learning Mathematics for Grade X High School Students Nasrianus Nampung; Aloisius Loka Son; Ferdinandus Mone
Indonesian Educational Research Journal Vol. 1 No. 2 (2023): Improving Learning Quality and Student Abilities
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v1i2.18

Abstract

This study aims to improve students' problem-solving abilities through a constructivist approach. This study uses quantitative methods in the form of pre-experimental. This research was carried out in the even semester of the 2022/2023 academic year This research design used one group pretest and post-test. The participants of this study were 17 grade X students of one of the high schools in North Central Timor district. Research instruments in the form of problem-solving ability tests. Before conducting data analysis, a prerequisite test is first carried out, namely a normality test using the SPSS-assisted Shapiro-Wilk test, and the results obtained that the data is normally distributed. Test the hypothesis using a one-sample t-test and a paired sample t-test. The results showed that students who learned using the constructivist approach achieved minimal completeness and there was an increase in the mathematical problem-solving ability of students who learned through the constructivism approach. Learning with a constructivist approach can facilitate the problem-solving ability of high school students. Therefore, it is recommended that advanced researchers in order to be able to apply constructivist approaches to other mathematical abilities
Co-Authors Aan Juhana Senjaya Adelburga Indra admin pythagoras, admin Ana Paula Tae Angelina Lopo Anna Sako Bimolo Axel Dircio-Vargas Bete, Hendrika Camilo Andrés Rodríguez-Nieto Camilo Andrés Rodríguez-Nieto Cecilia Novianti Salsinha Darhim Darhim Destiana Mali , Maria Dominikus Nitsae Eduardus Beo Seso Delvion Efonius Piter Liwu Elisabeth Olo Ester M. N. Elly Auw Eva Binsasi falentinus evandri abi Fatimah, Siti Faustinus Luan Fiki Alghadari Frederikus Seran Funan, Fedelia García-García, Javier Gerardo Salgado-Beltrán Gunadi, Farid Handrianus Mentu I Ketut Sumantar I Ketut Sumantra I Ketut Widnyana I Ketut Widnyana Isnawan, Muhamad Galang Javier García-García Javier Garcia-Gracia Jefrianus Nino Klau, Kondradus Yohanes Kondradus Yohanes Klau Kresensia Usolin Lily Aulin Assya Mada, Grandianus Seda Maifa, Talisadika Serrisanti Maria Delviana Mali Maria Densiana Nailake Maria Elisabeth Timo Maria Fransiska Tas’au Maria Rosalinda Talan Maria Rosalinda Talan Mau, Maria Sensiana Misa, Yeni mone, ferdinandus Morales-Benitez, Leineri Naiheli, Maria Dolorosa Nasrianus Nampung Neta Deliana Bau Nik, Nikolas Nugraha K. F. Dethan Nur Ahzan, Zulkaidah Nurwijayanti Oktovianus Mamoh Patricia Wua Laja, Yosepha PUTU SEKARWANGI SARASWATI Regina Afeanpah Rizkiah Nurul Fitriani Ronaldus Ariyanto Jelahu Rosyadi Rosyadi Rosyadi Runisah, Runisah Salgado-Beltrán, Gerardo Sekar Wangi Selestina Nahak Septianingsi Manekat Siahaan, Meiva Marthaulina Lestari Simarmata, Justin Eduardo Sri Adi Widodo Sudirman Sudirman Sudirman Trivonia Bau, Anastasia Wua Laja, Yosepha Patricia Yakoba Yusina Muanley Yakobus Pffeferius Edvend Saba Agu Yohanes Jefrianus Kehi Yosepha Patricia W. Laja Yovita Maria Palla Yunita, Ika Zofar Agluis Banunaek