Article Per Year (5 Year)
p-Index From 2021 - 2026
0.983
P-Index
This Author published in this journals
All Journal KALAMATIKA Jurnal Pendidikan Matematika Journal of Advanced Sciences and Mathematics Education Indonesian Educational Research Journal
Camilo Andrés Rodríguez-Nieto
Universidad de la Costa
Chemistry Education Mathematics Physics Social Sciences

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Geometry from coastal life: A grounded theory of primary students’ 3D geometry understanding in Northern Coastal West Java Endang Wahyuningrum; Sudirman Sudirman; Camilo Andrés Rodríguez-Nieto
Journal of Advanced Sciences and Mathematics Education Vol. 5 No. 2 (2025): Journal of Advanced Sciences and Mathematics Education
Publisher : CV. FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/jasme.v5i2.813

Abstract

Background: Although three-dimensional (3D) geometry is an essential component of the elementary school mathematics curriculum, research exploring how students develop spatial understanding of 3D geometric objects in authentic learning contexts remains limited. Furthermore, the challenge of bridging visual, verbal, and manipulative representations persists as a major gap in the literature.Aims: This study aims to address this gap by examining the process through which elementary students develop conceptual understanding of 3D geometry using a grounded theory approach.Method: The study was conducted at a public elementary school in Indramayu Regency, West Java, Indonesia. A total of 26 students (20 female and 6 male, aged 11–12) voluntarily participated. Data were collected through 3D geometric visualization tests and in-depth interviews focusing on students' thought processes in imagining, comparing, and manipulating spatial forms. Data analysis followed the three stages of grounded theory methodology: open coding, axial coding, and selective coding, to construct a theory grounded in empirical data.Results: The findings reveal that students’ understanding of 3D volume is still in a transitional stage, moving from concrete experiences to formal mathematical representations. Familiar local contexts alone were found insufficient to bridge spatial understanding without adequate visual and pedagogical support. Major obstacles included conceptual misconceptions, procedural errors, limited visualization skills, and reliance on teacher assistance.Conclusion: The core category, “multiple representations as a bridge to spatial understanding,” underscores the importance of integrating concrete visualization, verbal description, and mathematical symbolism in geometry instruction. This study suggests that teachers should design instructional strategies that systematically combine visual media, concrete manipulatives, and verbal approaches. Such integration is crucial to ensure that local contexts effectively serve as a bridge between real-world experiences and abstract mathematical understanding.
Analysis of the Mathematical Reasoning Ability of High School Students in Solving Trigonometric Problems Hildegardis Kono Oemanas Oemanas; Selestina Nahak; Ferdinandus Mone; Camilo Andrés Rodríguez-Nieto
Indonesian Educational Research Journal Vol. 2 No. 2 (2024): Teaching and Learning at the Educational Unit Level.
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v2i2.43

Abstract

Reasoning is needed by students to solve trigonometry problems that are considered difficult to solve. So, the researcher conducted a study to determine students' mathematical reasoning skills in solving trigonometric problems. This type of research is descriptive research with qualitative methods. The subjects of this study were 3 students of class XII in one of the senior high schools in North Central Timor district. Data collection techniques were test questions and interviews. From the results of the study, it was concluded that high category mathematical reasoning ability was able to fulfill 4 reasoning indicators, medium category mathematical reasoning ability was able to fulfill 2 reasoning indicators, while low category reasoning ability only fulfilled 1 reasoning ability indicator.
Numeracy Skills of Junior High School Students: A Comparative Study Based on Learning Approach Interventions Ana Paula Tae; Aloisius Loka Son; Yohanes Jefrianus Kehi; Camilo Andrés Rodríguez-Nieto; Javier García-García
Indonesian Educational Research Journal Vol. 3 No. 1 (2025): Various Learning Strategies in Education to Facilitate Student Learning Outcome
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v3i1.90

Abstract

This study aims to determine the achievement and improvement of students' numeracy skills based on the Realistic Mathematics Education (RME) approach intervention. This research used a quasi-experimental method with a pretest-posttest control group design. The research sample consisted of two classes, namely the experimental class that used the RME approach and the control class that used conventional methods. The instrument used was a numeracy description test question on the material of the Two-Variable Linear Equation System. The results showed that the achievement and improvement of students' numeracy skills, who learned through the realistic mathematics education approach, were better than students who learn through conventional approaches. This shows that learning with a realistic mathematics education approach can facilitate the numeracy skills of junior high school students. It is hoped that future researchers can apply the realistic mathematics education approach to other mathematical skills.
Determinants and Strategies for Strengthening Junior High Students’ Numeracy in the Indonesia–Timor Leste Border Region Yovita Maria Palla; Aloisius Loka Son; Hendrika Bete; Javier García-García; Camilo Andrés Rodríguez-Nieto
Indonesian Educational Research Journal Vol. 3 No. 3 (2026): Innovative and Inclusive Pathways to Strengthening 21st-Century Skills in Educa
Publisher : CV. Samuel Manurung and Co

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56773/ierj.v3i3.139

Abstract

The low numeracy skills of students in Indonesia remains a major challenge in many schools, including Junior high school students in the border area of ​​the Republic of Indonesia and the Democratic Republic of Timor Leste. The purpose of this study is to describe the level of students’ numeracy skills, identify aspects that still need improvement, explore the factors affecting students’ numeracy skills, and examine the efforts made to support numeracy development among junior high school students. This study employs a qualitative research design with a case study approach, conducted at one Junior High School in Kefamenanu City, Indonesia, during the odd semester of the 2024/2025 academic year. The participants were 21 eighth-grade students who completed a written test, followed by interviews with six students, their parents, and the mathematics teacher. Test items and interview guidelines were used to collect data. Results indicate that students’ numeracy skills are still relatively low, as reflected in the low average test scores. The numeracy aspects that require the most improvement are application and reasoning. Factors influencing numeracy skills include internal factors-such as interest, motivation, understanding, and attitude-and external factors, including the learning environment, facilities and infrastructure, parental involvement, and teaching strategies. Efforts to enhance numeracy skills include increasing students’ interest and motivation, strengthening conceptual understanding, developing application and reasoning skills, and implementing context-based learning strategies
Adaptive learning systems in mathematics education: An integrated bibliometric mapping and systematic literature review Suci Nurhayati; Sudirman Sudirman; Kartono Kartono; Camilo Andrés Rodríguez-Nieto
KALAMATIKA Jurnal Pendidikan Matematika Vol 11 No 1 (2026): KALAMATIKA April 2026
Publisher : FKIP Universitas Muhammadiyah Prof. DR. HAMKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/KALAMATIKA.vol11no1.2026pp20-46

Abstract

Research on adaptive learning systems (ALS) in mathematics education has increased substantially in recent years; however, existing studies remain fragmented across system types, educational levels, and implementation contexts. Most prior reviews have focused either on technological characteristics or learning outcomes, providing limited insight into how adaptive learning systems are systematically implemented and synthesized within mathematics education. Addressing this gap, this study examines adaptive learning systems in mathematics education through an integrated bibliometric mapping and systematic literature review. A systematic literature review was conducted and reported in accordance with PRISMA guidelines to identify, screen, and select relevant studies from major academic databases. Bibliometric mapping analysis using VOSviewer was then employed to explore publication trends, keyword co-occurrence, and thematic structures within the selected literature. The findings indicate that adaptive learning systems generally contribute positively to mathematics learning outcomes; however, their effectiveness is closely associated with pedagogical integration and teacher preparedness rather than technological sophistication alone. A phased implementation pattern is observed, beginning with teacher-led enhancement approaches and progressing toward more technology-mediated models. While AI-based systems demonstrate strong potential, moderately complex adaptive systems appear more feasible for institutions with limited resources. These findings highlight the importance of pedagogical readiness in the adoption of adaptive learning systems and suggest directions for future research, particularly in underrepresented educational levels.
Co-Authors Aloisius Loka Son Ana Paula Tae Bete, Hendrika Endang Wahyuningrum Hildegardis Kono Oemanas Oemanas Javier García-García Kartono Kartono mone, ferdinandus Selestina Nahak Suci Nurhayati Sudirman Yohanes Jefrianus Kehi Yovita Maria Palla