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All Journal Jurnal Pendidikan Sains The Journal of Pure and Applied Chemistry Research EduChemia: Jurnal Kimia dan Pendidikan Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan J-PEK (JURNAL PEMBELAJARAN KIMIA) JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Indonesian Journal of Chemistry JMM (Jurnal Masyarakat Mandiri) JCER (Journal of Chemistry Education Research) Makara Journal of Science J-PEK (Jurnal Pembelajaran Kimia)
Anugrah Ricky Wijaya
Universitas Negeri Malang
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences Other

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Comparison of Vocational Students’ Conceptual Understanding in Acid-Base Titration Using Virtual Lab-Based Learning and Lab-Based Learning with Chemical and Natural Indicators Hartinah Pratiwi; Alvin Annayya Habibah; Kurnia Larasati; Anugrah Ricky Wijaya
J-PEK (Jurnal Pembelajaran Kimia) Vol. 10 No. 2 (2025): J-PEK (JURNAL PEMBELAJARAN KIMIA)
Publisher : Department of Chemistry, Universitas Negeri Malang

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Abstract

This study compared the effectiveness of Virtual Lab-Based Learning (VLL) and Lab-Based Learning (LBL) in improving students’ conceptual understanding of acid-base using chemical and natural indicators. A quantitative quasi-experimental design with a pretest-posttest control group was implemented involving 30 vocational high school students from the Industrial Chemistry program at SMK PGRI 3 Malang, divided equally into two groups. The LBL group conducted hands-on laboratory experiments, while the VLL group utilized the ChemCollective virtual simulation platform. Both groups studied the same topic with equal instruction time and guidance from the same teacher. The results indicated that both learning models significantly improved students’ conceptual understanding of acid-base titration, with the LBL group achieving a higher post-test increase (74.06%) than the VLL group (62.26%). This suggests that direct laboratory practice fosters greater procedural accuracy, conceptual comprehension, and cognitive engagement. However, VLL remains a useful alternative for schools with limited laboratory access, providing an interactive means for students to visualize titration steps, color changes, and pH variations. The incorporation of natural pigments from red cabbage and hibiscus further enhanced student interest and contextual learning outcomes. Despite these promising results, the limited sample size constrains the generalization of findings, and future studies with larger, more diverse samples are recommended to validate the consistency of these results across broader educational contexts.
Batik Science Demonstration Program (PODESABA) for the Enlightened Generation at the Sanggar Muhammadiyah in Kampung Baru, Kuala Lumpur, Malaysia Anugrah Ricky Wijaya; Aman Santoso; Eli Hendrik Sanjaya; Dima Vici Nadia Ariefianti; Intan Ainul Malik; Dewinta Yuka Siwi; Fatmah Khairani; Novida Pratiwi; Ratna Yunita Setiyani Subardjo; Ahmad Sururi
J-PEK (Jurnal Pembelajaran Kimia) Vol. 10 No. 2 (2025): J-PEK (JURNAL PEMBELAJARAN KIMIA)
Publisher : Department of Chemistry, Universitas Negeri Malang

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Abstract

The Batik Science Demonstration Program (PODESABA) for the Enlightened Generation was conducted by the Department of Chemistry's community service team at Sanggar Muhammadiyah, Kampung Baru, Kuala Lumpur, Malaysia, in 2025. This international community service initiative aimed to introduce fundamental chemistry concepts through culturally contextualised learning, enhancing students' scientific literacy and creativity. The program comprised four main sessions: (1) a redox reaction demonstration using Betadine solution and citrus juice to visualize vitamin C presence, (2) a simple paper chromatography experiment to illustrate separation techniques, (3) an ecoprint batik workshop utilizing plant-based dyes and alum solution as a natural mordant, and (4) a jumput (tie-dye) batik activity using natural dyes. Each activity was designed to be interactive and culturally relevant, enabling participants to connect scientific principles with traditional batik-making practices. The program yielded positive outcomes, including heightened enthusiasm and active participation among children, improved comprehension of redox and separation concepts, and the creation of innovative batik products. This initiative successfully integrated science and art, embodying the spirit of The Enlightened Generation through cross-cultural collaboration and exchange.
Analysis of the Development of Chemistry Analysis Try-Out Questions and Their Impact on the Graduation of Professional Teacher Education (PPG) Students Wijaya, Anugrah Ricky; Atikah, Nur
J-PEK (Jurnal Pembelajaran Kimia) Vol. 11 No. 1 (2026): J-PEK (Jurnal Pembelajaran Kimia)
Publisher : Department of Chemistry, Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977//um026v11i12026p001

Abstract

This study describes the development of try-out questions for Professional Teacher Education (PPG) students in Chemical Analysis at Universitas Negeri Malang. The try-out questions, consisting of 35 Pedagogical Content Knowledge (PCK) questions, were designed to assess students' understanding of chemistry analysis and their ability to apply it in real-world scenarios. The development process involved integrating Question Analysis Materials, Subject Matter Study Materials, and Cognitive Level of Questions to create relevant and challenging questions. Expert feedback was incorporated to revise and improve the questions, resulting in a low error rate of 5% for the Chemical Analysis set questions. The try-out questions demonstrated promising results, with a 100% pass rate for PPG students in Chemical Analysis.
Co-Authors Abdillah Al Farraby Ahmad Sururi Ahmad Taufiq Alif Alfarisyi Syah Alvin Annayya Habibah Alvin Annayya Habibah Aman Santos Aman Santoso Amara, Aulia Angga Dheta Shirajjudin Aji Anggarani, Dinar Arsy Anie Yulistyorini Arabillah, Zulfikar Wildan Ayub Indra Bayu Kreshna Adhitya Sumarto Choiril Azmiyawati Daratu Kusuma Eviana Putri Dewi Yuliani, Dewi Dewinta Yuka Siwi Dhinarty Umi Rachmawaty Dian Puspita Sari Dima Vici Nadia Ariefianti Dima Vici Nadia Ariefianti Eli Hendrik Sanjaya Endang Budiasih Estiyawati, Estiyawati Fadhil Md Din, Mohd Farashinta Nadia Fatmah Khairani Hanumi Oktiyani Rusdi Harno Dwi Pranowo Hartinah Pratiwi Hartinah Pratiwi Hendra Susanto Hengky Pamungkas, Yahya Hong Chen I Wayan Dasna Indah Nur Pramesti Intan Ainul Malik Jayawarsa, A.A. Ketut Khoiril Amin Kurnia Larasati Kurnia Larasati Kusfianti, Anisa Aulia Kusumaningrum, Irma Kartika Li, Yu-You Maharani, Chariztya Anggita Mohd Hafiz Dzarfan Othman Muhammad Roy Asrori Muntholib Munzil Nanik Wijayanti Nor Basid Adiwibawa Prasetya Novida Pratiwi Noviyanti, Thjiong Angelina Nur Atikah Nurbani Jusuf Nurwarrohman Andre Sasongko Parsaoran Siahaan Purwandari, Intan Diah Puspa Rahmadina Lestari Putra, Helwani Fuadi Sujoko Rachman, Ihsan Budi Rachmawaty, Dhinarty Umi Ratna Yunita Setiyani Subardjo Retno Ariadi Lusiana Retnosari, Rini Rizky, M Salsabila, Arini Suharti Sumari Sumari Surjani Wonorahardjo Syah, Alif Alfarisyi Syavika, Lukluatus Wulan Ratia Ratulangi Yudhi Utomo Yusron Risqy Maulana Zahra Firdaus