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Miranda Kaira Pangestu; Wahyu Sihab

2026 Asosiasi Riset Ilmu Manajemen dan Bisnis Indonesia

The purpose of this study is to analyze Mohammed Ghaly's thoughts from a theological and legal perspective on disability and its implications for social inclusion. This research uses a qualitative approach based on literature studies with in-depth analysis of primary Islamic sources such as the Qur'an, hadith, and tafsir, kalam, and fiqh literature from various periods. Ghaly seeks to reveal the normative attitude of this religion towards persons with disabilities and its implications for social inclusion. The analysis utilizes contemporary disability studies to examine Ghaly's concepts in Islamic theology and law regarding the inherent nature and fundamental rights of persons with disabilities. However, he also emphasizes the need for new interpretations and contextualizations of this textual heritage based on the values of justice, inclusion, and empowerment. The findings of this study show that there is a stigma associated with disability due to the conflict between Islamic idealism and social reality. Nevertheless, the main principles and laws of Islam provide strong normative guidance for the dignity of persons with disabilities.

Agussalim Agussalim; Amirul Mustofa; Sarwani Sarwani; Dian Ferriswara

International Journal of Social Sciences and Communication 2026 International Forum of Researchers and Lecturers

Consular services have become a critical site of state intervention in the governance of international labor migration, particularly for migrant-sending countries such as Indonesia whose citizens depend on overseas missions for administrative protection and access to public services abroad. Despite the growing importance of consular institutions in safeguarding migrant workers’ rights and welfare, existing scholarship remains fragmented, offering limited conceptual integration of how administrative capacity shapes institutional readiness in cross-border public service delivery. Addressing this gap, this article presents a structured narrative–integrative literature review that synthesizes international peer-reviewed studies on administrative capacity, policy capacity, consular services, and migrant worker protection published in the last five years. Drawing on Administrative Capacity Theory as the core framework, complemented by Public Service Theory, Policy Implementation Theory, Street-Level Bureaucracy, and Institutional Theory, the review systematically analyzes how different dimensions of capacity configure institutional readiness in consular services. The findings reveal that institutional readiness emerges from the interaction of four interrelated dimensions: human resource capacity, organizational and procedural capacity, institutional and coordination capacity, and resource and infrastructure capacity. Rather than functioning as isolated determinants, these dimensions collectively shape how consular institutions translate formal mandates into service outcomes under conditions of transnational governance, legal pluralism, and fluctuating demand. The review further demonstrates that frontline discretion, coordination gaps, procedural rigidity, and uneven resource allocation are recurrent patterns across the literature, underscoring the dynamic and practice-based nature of administrative capacity in consular contexts. Theoretically, this article contributes to public administration scholarship by extending administrative capacity frameworks into the underexplored domain of cross-border public services and by integrating previously segmented theoretical perspectives into a coherent conceptual synthesis. By reframing consular services as institutionally embedded public service systems rather than solely diplomatic functions, the article advances understanding of institutional readiness in migrant worker protection and provides a robust analytical foundation for future empirical and comparative research in international public administration.

Syamsul Bahri; Dio Manik; Ester Monica Bu’ulolo; Fadillah Fauziah Putri; Indi Azizah Nailah

Jurnal Motivasi Pendidikan dan Bahasa 2026 International Forum of Researchers and Lecturers

William Shakespeare’s Romeo and Juliet portrays deep reflections on human nature and moral values, emphasizing the importance of dignity, freedom, and emotional connection in human life. The tragedy explores the conflict between personal feelings and social constraints, revealing how human ideals often clash with rigid traditions and authority. Through the struggles of Romeo and Juliet, Shakespeare presents the essence of humanity love, empathy, and the pursuit of understanding amid division and hostility. This study aims to analyze the values of humanism in William Shakespeare’s tragedy Romeo and Juliet. The research focuses on how humanist ideals such as dignity, freedom, solidarity, and communicative rationality are reflected through the characters’ dialogues, decisions, and relationships. Using a qualitative descriptive method, the analysis applies Hardiman’s theory of humanism, supported by references from academic books and journals. The findings reveal six categories of humanism values: appreciating opinions (20%), cooperation (17%), sacrifice (23%), caring for others (13%), helping (13%), and solidarity (14%). Among these, sacrifice appears as the most dominant value, especially reflected in the willingness of Romeo and Juliet to risk everything for love and moral ideals. These findings indicate that Romeo and Juliet embodies humanist values that emphasize empathy, moral responsibility, and the importance of understanding in overcoming social barriers. Although the story ends in tragedy, the play highlights that love, empathy, and dialogue are essential for building a humane society. Therefore, Romeo and Juliet is not only a timeless love story but also a literary work that reflects enduring humanist ideals relevant to modern life.

Erlianda Cibro; Miftah Khairiyah SM; Ghasani Fathonia; Siti Maysarah

Jurnal Pengabdian Masyarakat Terapan 2026 Lembaga Pengembangan Kinerja Dosen

The issue of plastic waste is increasingly becoming an environmental concern, including in elementary schools, due to its non-biodegradable nature and its potential to cause environmental pollution if not properly managed. This activity aims to implement the Ecobrick method as an innovative solution for managing and utilizing plastic waste at SDN 054945 Desa Dogang, Gebang District, Langkat Regency. The method used is a descriptive qualitative approach involving 65 students from grades IV and V through a community service activity. The activity was carried out on July 17, 2024, through preparation, implementation, and evaluation stages, with data collection techniques including observation, documentation, and reflective discussion. The results show that the application of the Ecobrick method successfully increased students' understanding and awareness of the dangers of plastic waste and fostered an early environmental concern. Moreover, previously worthless plastic waste was processed into functional Ecobrick benches that can be utilized within the school environment. This activity also encouraged a sense of mutual cooperation, responsibility, and creativity among the students. Thus, the Ecobrick method has proven to be an effective alternative for plastic waste management and a contextual learning medium in creating an environmentally friendly school culture.

Ade Wahyu Permana; Dairani Dairani; Syahrul Ibad

Jurnal Kajian Ilmu Sosial, Politik dan Hukum 2026 Asosiasi Peneliti dan Pengajar Ilmu Hukum Indonesia

Tabuh Rah in Bali is part of a Hindu religious ceremony involving animal sacrifice to maintain harmony between nature and human life. In practice, it is often accompanied by tajen (cockfighting) involving monetary or valuable bets, potentially violating Article 303 of the Indonesian Criminal Code concerning gambling. This study examines the regulation of cockfighting as a criminal offense under Article 303 and the criminal liability of perpetrators of tajen within the context of the Tabuh Rah ceremony. The research employs a normative legal method using statutory and conceptual approaches. The findings indicate that cockfighting conducted as part of the Tabuh Rah ritual is permissible based on the Batur Agung Inscription (933 Saka) and the Batuan Inscription (944 Saka) without requiring official authorization. However, cockfighting conducted outside the ritual context and involving betting constitutes gambling in violation of the Criminal Code and Law No. 7 of 1974. Perpetrators may be held criminally liable for intentionally committing an unlawful act.

Clara Zuliani Syahputri; Jasmir Jasmir; Fachruddin Fachruddin

Prosiding Seminar Nasional Ilmu Teknik 2026 Asosiasi Riset Ilmu Teknik Indonesia

Heart disease is the leading cause of death in Indonesia and globally, necessitating an early screening system that is both accurate and clinically trustworthy. Although XGBoost demonstrates high predictive performance, its black-box nature undermines clinical trust, while low recall risks missed diagnosis an unacceptable consequence in population screening, especially in middle-income countries with limited healthcare resources. This study aims to develop a sensitive, transparent, and implementation-ready heart disease screening framework through the integration of SHAP-based Explainable AI. The CDC's Indicators of Heart Disease dataset (319,795 samples) was processed according to WHO/CDC standards, followed by class imbalance handling, hyperparameter optimization using RandomizedSearchCV, evaluation based on metrics sensitive to minority classes (AUC, recall, F1-score, AUC-PR), and threshold tuning to maximize recall. The baseline model showed a very low recall of 12.18%. After optimization and threshold tuning at 0.10, the model achieved recall >96% (96.79%) with a G-mean of 0.7477, supported by SHAP interpretation stability and the ability to capture non-linear interactions between advanced age (AgeCategory_WHO) and poor general health (GenHealth). SHAP analysis confirmed the alignment of dominant features with medical evidence, and its visualizations provide transparent explanations for healthcare professionals indicating its potential implementation as an interpretable clinical decision support system.

Fransiskus Saverius Minggu; Yulianus Kian; Jefrianus Ulu Manek; Paskalis Jhon juan; Frederikus Rifaldo Soro +1 more

jurnal Riset Rumpun Agama dan Filsafat 2026 Pusat Riset dan Inovasi Nasional

This study examines the sacred meaning of the agricultural cycle in the life of the indigenous community of the Detunggali Communal Land through an ethnographic approach. Agricultural rituals accompanying all stages of farming from land clearing, seed preparation and planting, crop maintenance, to harvesting are understood as cultural practices that integrate spiritual, social, and ecological dimensions. The study aims to explore how these agrarian rites function in shaping relationships between humans, nature, and ancestors, while sustaining the collective identity of the Detunggali community. A qualitative descriptive method was employed, with data collected through in-depth interviews, participant observation, and documentation involving customary elders and community members. The findings reveal that farming activities in Detunggali are not merely economic endeavors but are deeply embedded in sacred values expressed through symbols, prayers, and customary rules. Agrarian rituals play a crucial role in maintaining cosmic balance, strengthening social cohesion, and fostering ecological awareness rooted in local cosmology. The study highlights that indigenous agricultural traditions remain a vital source of cultural and spiritual values, offering important insights for cultural preservation and locally grounded approaches to sustainable development.

Helviana Hasibuan

VitaMedica : Jurnal Rumpun Kesehatan Umum 2026 STIKES Columbia Asia Medan

Hospitals are high-risk work environments that expose workers to biological, chemical, physical, and psychosocial hazards.  Despite strict regulations on Occupational Safety and Health (OSH), the implementation of regular Medical Check-Ups (MCU) for hospital workers is often considered merely an administrative formality rather than a legal protection instrument. This study aims to analyze the legal urgency of implementing MCU for hospital workers and examine the evidentiary strength of MCU results as a preventive measure against work-related disease claims. This normative juridical research employs statutory and conceptual approaches, analyzing Law No. 17/2023 on Health, Law No. 13/2003 on Manpower, and Ministry of Health regulations on Hospital OSH. Although MCU obligations are legally mandated, their implementation in hospitals remains administrative in nature and suboptimal as legal evidence for establishing causation in occupational disease litigation. MCU documentation serves as critical baseline evidence to prove or refute work-relatedness of health condition. Hospital compliance with MCU standards constitutes not merely a health compliance requirement, but a preventive legal risk management strategy to avoid compensation claims and ensure workers' constitutional rights to a safe work environment. Strengthening internal MCU protocols is essential for minimizing future litigation risks.

Nayla Zelda Khairunisa; Nabila Khairunnisa Alyamanda; Farah Ilma Jauhara; Annisa Prima Lia Nanda; Chandra Hadi Cipto Nugroho +3 more

Dinamika Pembelajaran : Jurnal Pendidikan dan bahasa 2026 Lembaga Pengembangan Kinerja Dosen

This study aims to describe the structure, syntactic function, and semantic role of the nominal clause in JawaPos.com news texts published in August 2025. By using a descriptive qualitative approach, this study applied syntactic analysis to explore how the nominal clause operates within the linguistic and contextual framework of media discourse. Data were collected from online news articles and analyzed using Indonesian syntactic and semantic theory. The results show that nominal clauses play a crucial role in constructing discourse structure and meaning through their syntactic functions as subjects, objects, complements, and adverbs. In semantics, nominal clauses perform various roles, including as agents, objects, recipients, and markers of condition or location. The pattern of nominal clause use reflects the concise, efficient, and communicative nature of journalistic language. The correlation between syntactic function and semantic role shows a cohesive relationship that enhances clarity and accuracy in conveying information. This study contributes to the development of syntactic and media linguistic research and serves as a valuable reference for journalists and language educators in promoting effective and ethical language use in journalism.

David Iman Tu’o; Yanto Sandy Tjang; Felisitas Yuswanto

Filosofi : Publikasi Ilmu Komunikasi, Desain, Seni Budaya 2026 Asosiasi Seni Desain dan Komunikasi Visual Indonesia

This study analyzes the role of the indigenous belief system of the Dayak Tomun community as a foundation for social solidarity, a mechanism of non-formal social control, and a strategy of cultural adaptation in the context of modernization. Grounded in Émile Durkheim’s sociology of religion, particularly the concepts of mechanical solidarity and collective consciousness, this research employs a qualitative approach through a phenomenologically oriented literature review. Data were obtained from ethnographic documents, customary law manuscripts, scholarly articles, and official publications. The findings indicate that indigenous rituals, such as Babukung and Bana’i Tamu, function as means of strengthening emotional bonds and reproducing collective values through communal participation and sacred symbols. Customary law and the pamali system operate effectively as mechanisms of non-formal social control derived from supranatural authority, while simultaneously serving as strategies for ecological conservation. Indigenous beliefs also constitute the foundation of collective consciousness through the internalization of values such as mutual cooperation, respect for nature, and veneration of ancestors. Amid modernization, the Dayak Tomun community demonstrates creative adaptation through ritual reinterpretation, flexible application of pamali, and the integration of formal education with indigenous knowledge. This study affirms that the indigenous belief system of the Dayak Tomun functions as a strategic social, cultural, and ecological instrument in sustaining social cohesion, community resilience, and the continuity of collective identity in the face of contemporary social transformation.  

Paula Leony Putri Terigas; Tjang, Yanto Sandy; Yusmanto Yusmanto; Felisitas Yuswanto

Pengharapan : Jurnal Pendidikan dan Pemuridan Kristen dan Katolik 2026 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

This study examines the relationship between Dayak cosmology and Christian spirituality through the inculturation of the Munjong tradition within Catholic Dayak Tobak communities in Dusun Batu Besi, Desa Sejotang, West Kalimantan. As a post-harvest thanksgiving ritual, Munjong embodies a symbolic framework reflecting the interconnectedness of humans, nature, ancestors, and Jebata within the Dayak worldview. The tradition functions not only as a religious expression but also as a means of preserving cultural identity and fostering social cohesion. Within a predominantly Catholic context, Munjong has undergone reinterpretation, aligning with Eucharistic spirituality as the Church’s central expression of gratitude. Using a descriptive-qualitative approach combined with symbolic interaction analysis, this study shows that the religious values embedded in Munjong, including: gratitude, petitions for protection, and veneration of ancestors as spiritual mediators, correspond with Catholic teachings on divine providence, the communion of saints, and the sacredness of creation. The local Church recognizes Munjong as a cultural practice suitable for inculturation, provided it aligns with Christian doctrine, thereby offering opportunities for contextual liturgy and catechesis. The findings suggest that Munjong can serve as a bridge between faith and local culture while simultaneously reinforcing cultural identity and deepening the spiritual life of the community. The result of this study contributes to the discourse on inculturation, contextual pastoral practice, and strategies for sustaining indigenous traditions amid social change.

Faliani Zaliaokta; Distya Rahma Fauzia; Livia Fajarisalfa; Siti Maharani

IJLS (International Journal of Law and Society) 2026 Asosiasi Penelitian dan Pengajar Ilmu Hukum Indonesia

Air pollution constitutes a significant environmental problem with far-reaching impacts on public health, quality of life, and ecosystem sustainability, particularly in urban areas and industrial zones in Indonesia. Although the national environmental legal framework has adopted the principle of strict liability through Law Number 32 of 2009 on Environmental Protection and Management, its implementation in air pollution cases continues to face substantial challenges, especially with regard to the proof and assessment of non-material damages. Non-material damages such as disturbances to living comfort, deterioration of environmental quality, psychological stress, and health-related anxiety are intangible in nature and lack clear measurement standards, resulting in their frequent exclusion or inadequate consideration in environmental civil litigation. This study aims to analyze the legal basis for the application of the strict liability principle to air pollution cases in Indonesia, identify relevant forms of non-material damage, and examine the implications of the absence of standardized methods for assessing such damages on legal certainty and the effectiveness of corporate liability enforcement. The research employs a normative legal research method with a library-based approach, incorporating statutory, conceptual, and case approaches. Legal materials are analyzed qualitatively using a descriptive-analytical method, drawing upon legislation, court decisions, and scholarly literature on environmental law and environmental damage valuation. The findings indicate that the absence of standardized criteria for assessing non-material damages leads to evidentiary difficulties, inconsistent court decisions, and a weakened deterrent effect on polluting corporations, thereby preventing the full realization of victims’ rights to effective remedies. This study underscores the urgency of developing an integrated national technical guideline for the assessment of non-material environmental damages based on scientifically grounded valuation methods, as well as the need for cross-institutional policy harmonization to strengthen legal certainty, access to justice for affected communities, and corporate accountability in controlling air pollution.

Rasjida Amalia Bakti Lestari; Frido Ilham Prianggoro; Maya Felicia Kusnadi; Siti Kamilia Aziz

Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan 2026 Asosiasi Riset Ilmu Teknik Indonesia

Gununganyar Reservoir in Tuban Regency is one of the reservoirs used as a source of livelihood for the local community. However, further development and utilization of Gununganyar Reservoir have yet to be undertaken. The development of a small-scale floating Photovoltaic Solar Power Plant (floating solar panels) at Gununganyar Reservoir, aimed at providing an alternative and renewable energy source for operating raw water pumps and for supporting the Gununganyar Nature Tourism (WAG) initiative, constitutes an innovative and strategic effort to enhance energy efficiency and environmental sustainability in rural areas. This study focuses on the design and performance assessment of a floating solar panel system constructed with processed bamboo as an alternative floating material replacing HDPE, while integrating local wisdom and environmental conservation principles to minimize the reservoir’s carbon footprint. The methodology employs a simple quantitative approach combined with a literature review of relevant studies. Based on the analysis, the design of this small-scale floating solar panel system utilizes a 170 Wp off-grid solar module mounted at a tilt angle of approximately 7,1°, capable of generating a peak power output exceeding 2,962 kWp and supported by a battery capacity of  328,33 Ah. The implementation of these floating solar panels is expected to serve as a model for reservoir development by promoting energy self-sufficiency, stimulating local economic growth, and contributing to the achievement of net zero emissions by 2060.

Maria Novita; Rosalinda Novita Nona; Yohanista Alventia Eva Saputri; Karmelia Selvina Nona; Hairudin Alias +1 more

Jurnal Ilmu Pendidikan, Bahasa, Sastra dan Budaya 2026 Asosiasi Periset Bahasa Sastra Indonesia

This research is motivated by changes in students' academic communication patterns due to the rapid development of digital technology, which has the potential to affect the consistency of formal language use. In academic literacy, formal language plays a crucial role as a marker of professionalism and the accuracy of scientific communication. This study aims to analyze the shift in formal language use in students' academic communication and identify the factors influencing it in the digital era. The research method used a qualitative approach with a descriptive design. Data were collected through an online questionnaire in the form of open-ended questions to students at the University of Muhammadiyah Maumere who actively use digital media in academic communication. Data were analyzed by grouping respondents' answers and identifying language usage patterns. The results show that students understand the differences between formal and informal language, but their application in digital academic communication is not yet consistent. The shift is characterized by the use of abbreviations, slang, and inconsistencies in linguistic rules influenced by instant communication habits, social environments, and the nature of digital media. These findings emphasize the importance of continuously strengthening formal language literacy and academic communication ethics in higher education

Alminus Arian Nong Bao

Jurnal Pendidikan Pancasila dan Kewarganegaraan 2026 Asosiasi Periset Bahasa Sastra Indonesia

This study aims to examine the role of the Village Government in enforcing customary law sanctions of Wake Uru Sorong Tada and to analyze the effectiveness of its implementation in Heo Puat Village, Hewokloang District, Sikka Regency. Wake Uru Sorong Tada is a form of customary law that functions as a traditional prohibition to regulate and protect community ownership of agricultural products and commodities. This research employs a qualitative descriptive method. Data were collected through observation, in-depth interviews, and documentation involving key informants such as the village head, Village Consultative Body members, traditional leaders, and community members. Data analysis was conducted using the interactive model proposed by Miles and Huberman, which includes data reduction, data display, and conclusion drawing. The findings reveal that the Heo Puat Village Government plays an active role as a facilitator, mediator, and guarantor in enforcing customary sanctions in accordance with Village Regulation Number 2 of 2009. The village government does not directly determine the sanctions but collaborates closely with customary institutions in resolving violations. The enforcement of Wake Uru Sorong Tada customary law sanctions is considered effective in maintaining social order, security, and a sense of safety in property ownership among community members. The strict and binding nature of customary sanctions has significantly increased legal awareness and minimized social conflicts within the village.

Maria Novita; Rosalinda Novita Nona; Yohanista Alventia Eva Saputri; Karmelia Selvina Nona; Hairudin Alias +1 more

Jurnal Ilmu Pendidikan, Bahasa, Sastra dan Budaya 2026 Asosiasi Periset Bahasa Sastra Indonesia

This research is motivated by changes in students' academic communication patterns due to the rapid development of digital technology, which has the potential to affect the consistency of formal language use. In academic literacy, formal language plays a crucial role as a marker of professionalism and the accuracy of scientific communication. This study aims to analyze the shift in formal language use in students' academic communication and identify the factors influencing it in the digital era. The research method used a qualitative approach with a descriptive design. Data were collected through an online questionnaire in the form of open-ended questions to students at the University of Muhammadiyah Maumere who actively use digital media in academic communication. Data were analyzed by grouping respondents' answers and identifying language usage patterns. The results show that students understand the differences between formal and informal language, but their application in digital academic communication is not yet consistent. The shift is characterized by the use of abbreviations, slang, and inconsistencies in linguistic rules influenced by instant communication habits, social environments, and the nature of digital media. These findings emphasize the importance of continuously strengthening formal language literacy and academic communication ethics in higher education

Abednego Satrio Nugroho Purba; Cecep Suhardiman

Jurnal Riset Rumpun Ilmu Sosial, Politik dan Humaniora 2026 Pusat Riset dan Inovasi Nasional

Corporate Social Responsibility (CSR) in Indonesia has undergone a paradigmatic shift from voluntary philanthropic activities to a legally binding obligation grounded in various statutory regulations, particularly Law Number 40 of 2007 on Limited Liability Companies and Law Number 25 of 2007 on Investment. This study aims to analyze the legal framework governing CSR in Indonesia from a public policy perspective, to evaluate the implementation of CSR by corporations, and to identify normative and empirical constraints that hinder the optimization of CSR as an instrument of sustainable development. The research employs a normative juridical method with statutory, conceptual, case-based, and policy analysis approaches. The findings indicate that CSR regulation remains partial in nature, primarily due to the limitation of mandatory obligations to specific sectors, the absence of clear and enforceable sanctions, and the lack of national standards for reporting and oversight.

M. Iqbal Algani; Charles Rangkuti; Hery Iswandi

Karakter : Jurnal Riset Ilmu Pendidikan Islam 2026 Asosiasi Riset Ilmu Pendidikan Agama dan Filsafat Indonesia

A moral crisis occurs when a person loses the attitude, character, and behavior that are in accordance with goodness. Moral and ethical crises often occur among the younger generation in Indonesia due to various factors, such as the impact of globalization, the influence of social media, the lack of parental involvement, and the lack of character education in schools. This study aims to explore the relevance of character education values in M. Quraish Shihab's Tafsir Al-Mishbah to the problems faced by students in the contemporary era. The crisis of morality, bullying, and the threat of radicalism are the background to the urgency of internalizing contextual Qur'anic values. This research is qualitative in nature, using library research, a thematic approach, and content analysis. The results show that the concept of character education in Tafsir Al-Mishbah is rooted in the relationship between the meaning of Rabb and tarbiyah, which aims to shape Insan Kamil through intellectual and spiritual balance. Analysis of Q.S. Luqman: 12-13, Q.S. Al-Hujurat: 11-13, and Q.S. Al-Mujadilah: 11 reveals fundamental values such as monotheism, gratitude, tolerance, and manners in seeking knowledge. The relevance of the findings shows that Quraish Shihab's moderate (wasathiyah) thinking is very effective in protecting students from extreme ideas, building digital literacy ethics through the principle of tabayyun, and eliminating the culture of violence in schools through a humanistic approach. This study concludes that Tafsir Al-Mishbah offers a functional methodological framework for strengthening the character of 21st-century students.

Listri Maya Sari; Winda Ramadianti; Apriza Fitriani

International Journal of Mathematics and Science Education 2026 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Learning geometric transformations requires a strong conceptual understanding due to their abstract nature. One effort to enhance students’ conceptual understanding of mathematics is through the development of contextual and meaningful instructional materials that incorporate local culture. This study is a research and development (R&D) study employing the 4D model (Define, Design, Develop, and Disseminate) aimed at examining the validity of the developed Student Worksheets. The validation of the Student Worksheets was conducted by two experts in mathematics education who evaluated the aspects of content feasibility, media, and language and readability. The data were analyzed using descriptive quantitative methods with percentage scores to determine the level of validity of the Student Worksheets. The results showed that the developed Student Worksheets obtained a validity percentage of 93.75% for the content feasibility aspect (very valid), 80.77% for the media aspect (valid), and 87.50% for the language and readability aspect (very valid), with an overall average of 87.34%, which falls into the very valid category. Based on these results, the ethnomathematics-based Student Worksheets using the Kepahiang Traditional House context are considered feasible for use as supporting instructional materials in learning geometric transformations.

Marizka Purnamayana; Winda Ramadianti; Hilyati Milla

International Journal of Mathematics and Science Education 2026 Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Teaching plane geometry often faces challenges due to the abstract nature of geometric concepts, which are often detached from students’ real-life contexts. This study is a development research (Research and Development) using a modified 4D model reduced to 3D (Define, Design, Develop) aimed at producing and testing the validity of a Student Worksheet based on ethnomathematics with Batik Sekundang motifs on plane geometry material oriented toward Contextual Teaching and Learning (CTL). Validation was conducted by two mathematics education experts who assessed the feasibility of content/material, media, and language/readability using a Likert scale instrument. The data were analyzed quantitatively in a descriptive manner using percentage formulas to determine the level of validity. The results showed that the student worksheet obtained a validity percentage of 87.50% in content feasibility (very valid), 80.76% in media (valid), and 87.50% in language (very valid), with an overall average of 85.25%, which falls into the very valid category. Based on these results, the ethnomathematics-based student worksheet with Batik Sekundang motifs is declared suitable to be used as a supporting teaching material for contextual and meaningful plane geometry learning for students in South Bengkulu.