https://ejournal.cria.or.id/index.php/cahaya <div id="adtSiteName"><!-- ####### HEY, I AM THE SOURCE EDITOR! #########--> <div style="text-align: justify;">CAHAYA, which means “light” in Indonesian, symbolizes enlightenment and progress in science and education. The name reflects the journal's vision to be a source of knowledge that illuminates and opens new insights in the <strong>humanities and education.</strong> The journal is dedicated to providing an academic platform that facilitates critical analysis, empirical research, and conceptual discussions on various aspects of humanities and education. CAHAYA is committed to presenting high-quality articles that are able to contribute to theoretical and practical developments in these fields. The scope of this journal covers various disciplines in the <strong>humanities, such as philosophy, history, literature, art, and social sciences that are relevant to the development of culture and society.</strong> In addition, the journal also covers research in the field of <strong>education, including innovations in learning methodology, educational policy, educational technology, and professional development for educators.</strong></div> <div style="text-align: justify;">Articles published in CAHAYA are expected to address contemporary challenges in the fields of education and humanities and offer new perspectives that can be applied in practical and theoretical contexts. By combining analytical and empirical approaches, CAHAYA provides a forum for academics, researchers, and practitioners to share findings and insights that can make a real contribution to the advancement of science and learning.</div> <div style="text-align: justify;">Through the presentation of innovative and relevant research works, CAHAYA aims to become a key reference for those seeking intellectual enlightenment in the humanities and education, as well as encouraging collaboration and dialogue between disciplines. And Collaboration with <strong><a href="#" target="_blank" rel="noopener">Trijaya Krama Polytechnic</a>, <a href="https://drive.google.com/file/d/19a7KULjmCn-ic8uoo8Cnpp6C0PBFdEZH/view?usp=sharing" target="_blank" rel="noopener">Universitas Bina Sarana Informatika</a>, <a href="https://drive.google.com/file/d/1iWOqdkzuXSHCYrQqiW2LQ-RKH136B7zq/view?usp=sharing" target="_blank" rel="noopener">Universitas Bumigora</a> </strong>and others. to maintain publication quality.</div> </div> Yayasan Cinta Negara-INDONESIA en-US Contemporary Analysis in Humanities and Educational Advancement (CAHAYA) 3090-3416 https://ejournal.cria.or.id/index.php/cahaya/article/view/310 <p>This study aims to identify and analyze the forms of grammatical errors that are commonly found in the writings of high school students in five major cities in Indonesia. With a qualitative descriptive approach, data was collected through analysis of 50 student essays and interviews with Indonesian teachers. The results showed that there were four main categories of errors, namely morphology (35.8%), syntax (26.6%), conjunction use (21.1%), and diction (16.5%). These errors are caused by weak grammatical comprehension, lack of contextual writing practice, the influence of spoken language and social media, and the lack of discourse-based teaching. These findings reinforce the results of previous studies and confirm the importance of reformulating grammar learning strategies through error-based approaches and authentic texts. The practical implications of this study encourage educators to integrate guided writing exercises, sentence structure exploration, and discourse analysis as part of effective and meaningful Indonesian learning.</p> Angelica Sitohang Selvina Ulita Napitupulu Copyright (c) 2026 Angelica Sitohang, Selvina Ulita Napitupulu https://ejournal.cria.or.id/index.php/cahaya/LICP 2025-05-30 2025-05-30 1 2 50 57