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All Journal Indonesian Journal of Educational Development (IJED) Journal of Mathematics Science and Computer Education
Mirah Surya Dewi, Ni Pt. Pande
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Education Mathematics Physics

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Green Remediation of Used Cooking Oil Using Sugarcane Bagasse: A Sustainable, Green Chemistry Approach Mirah Surya Dewi, Ni Pt. Pande; Khodizah, Ayu Tri
Journal of Mathematics Science and Computer Education Vol 4, No 2 (2024)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jmscedu.v4i2.14139

Abstract

Environmental pillars are the foundation of sustainable development, emphasizing waste management solutions like used cooking oil purification. This study assesses used cooking oil quality based on color, odor, water content, free fatty acids, and peroxide value after sugarcane bagasse adsorption over 1, 2, and 3 days. Using a one-group pretest-posttest design, the 3-day treatment yielded optimal results: peroxide value (5.603 meq/kg), water content (0.070%), and free fatty acids (0.13%) decreased significantly, with improved color and odor compared to the control. The study integrates green chemistry principles, including waste prevention, energy efficiency, renewable material use, chemical degradation design, and safer chemical applications. This minimizes hazardous material usage, energy consumption, and environmental impact. Spent bagasse can be transformed into valuable products like compost or biofuel, providing sustainable solutions for managing used cooking oil waste, while reducing pollution and greenhouse gas emissions. The research offers an effective strategy aligned with Indonesia's conservation goals and green chemistry principles. It encourages public participation in local waste management, potentially inspiring innovative approaches for handling other waste types, thereby strengthening sustainability efforts.
Transforming laboratory management learning with e-modules Mirah Surya Dewi, Ni Pt. Pande; Liska, Luh De; Parwati, Ni Putu Yuniarika
Indonesian Journal of Educational Development (IJED) Vol. 6 No. 1 (2025): May 2025
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) Universitas PGRI Mahadewa Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59672/ijed.v6i1.4691

Abstract

Laboratories are crucial in chemistry education; however, in practice, many students still struggle to grasp the concept of laboratory management in an applied way, as reflected in their scores, which remain below the passing grade. This research aimed to develop e-modules based on case-based and project-based learning to improve understanding of laboratory management concepts. This study used a Research and Development (R&D) approach with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). Validation of e-modules was carried out by material and media experts, and tested on 24 FKIP ULM Chemistry Education students. Data collection instruments included validation questionnaires, student response questionnaires, as well as pretests and posttests, which were analysed using the Wilcoxon test. The results showed that the e-module was rated “very valid” from the aspects of content, presentation, language, and media. The Wilcoxon test resulted in a significance value of 0.000 (p < 0.05), indicating a significant increase in student concept understanding after the use of e-modules. Recommendations from this study are the wider use of case- and project-based e-modules in learning laboratory management, as well as continuous development to be more adaptive to the development of educational technology.
Profiling readiness for deep learning: A study of chemistry students' multiple intelligences and learning reflections Bakti, Iriani; Winarti, Atiek; Mirah Surya Dewi, Ni Pt. Pande; Mahdian; Eka Sari, Syarifah Meutiah
Indonesian Journal of Educational Development (IJED) Vol. 6 No. 4 (2026): February 2026
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) Universitas PGRI Mahadewa Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59672/ijed.v6i4.5400

Abstract

The persistent challenge of promoting deep conceptual understanding over rote memorization in chemistry education requires investigating students' readiness for student-centered learning. This study aims to screen student readiness for deep learning in chemistry by analyzing their multiple intelligences (MI) and reflective learning experiences. Employing a qualitative descriptive method, this study analyzed data from an MI questionnaire and reflective writing assignments from 84 Chemistry Education students (2022–2024 cohorts) selected via purposive sampling at Universitas Lambung Mangkurat. Results revealed that spatial intelligence is the most dominant profile, with 23 of 84 students in this category. Analysis of reflective writing identified Project-Based Learning (PjBL) as the most preferred instructional model for creating meaningful learning experiences, with 29 respondents favoring it. Furthermore, student reflections demonstrated a significant transformation from negative assumptions to deeper understanding, highlighting the development of creativity, critical thinking, and teamwork. These findings suggest that leveraging visual and project-based strategies aligned with students' dominant intelligence and learning preferences can effectively foster readiness for a deep learning approach in chemistry education.
Co-Authors Atiek Winarti Bakti, Iriani Eka Sari, Syarifah Meutiah Khodizah, Ayu Tri Luh De Liska Mahdian Ni Putu Yuniarika Parwati