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All Journal Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) JIPI (Jurnal IPA dan Pembelajaran IPA)
Sri Winarni
Universitas Syiah Kuala, Banda Aceh, Indonesia

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Implementation of Problem Based Learning Assisted by Excel Virtual Laboratory to Enhance Students' Conceptual Understanding of Reaction Equation Subject Putri Rahmadani; Ibnu Khaldun; Sri Winarni; Putri Nabilah
Jurnal Pendidikan Sains Indonesia Vol. 14 No. 3: JULY 2026
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jpsi.v14i3.2039

Abstract

The limitations of chemistry laboratory facilities in schools, as well as students' low motivation and conceptual understanding of reaction equation subject, necessitate the implementation of an innovative, technology-assisted learning model. This study aims to apply a problem-based learning (PBL) model assisted by an excel-based virtual laboratory (ChemRec) and to test its effectiveness in enhancing learning motivation and understanding of the concept of reaction equations. The research employed a quasi-experimental design with a non-equivalent control group design. The research subjects were tenth-grade students of SMAN 1 Bandar, divided into an experimental class (n=26) and a control class (n=27). The experimental class received PBL instruction assisted by ChemRec, while the control class received conventional instruction. The research instruments consisted of an ARCS model learning motivation questionnaire (20 items) and a conceptual understanding test (15 multiple-choice questions) which met the validity criteria (r calculated > 0.361) and reliability criteria (Cronbach's alpha = 0.858 > 0.70). Data analysis used the Wilcoxon signed-rank test, the Mann-Whitney U test, and N-Gain. The results showed that the application of ChemRec-assisted PBL significantly increased students' learning motivation (p=0.000 < 0.05) with an average N-Gain of 0.58 (moderate category). All 26 students in the experimental class experienced an increase in learning motivation. The average posttest score of the experimental class (89.23) was higher than that of the control class (75.80) with p < 0.001. The application of the excel-based virtual laboratory-assisted PBL is effective in increasing students' learning motivation and understanding of the concept of reaction equations, and serves as an alternative solution for schools with limited chemistry laboratory facilities
Effectiveness of Canva-Based Interactive Learning Media Using Problem-Based Learning to Improve Creative Thinking Skills on Balancing Redox Reactions Halimatus Sakdhiah; Muhammad Hasan; Sri Winarni; Muhamad Aditya Hidayah
JIPI (Jurnal IPA & Pembelajaran IPA) Vol. 10 No. 2: JUNE 2026
Publisher : Universitas Syiah Kuala, in collaboration with the Perkumpulan Pendidik IPA Indonesia (PPII), (MoU)

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Abstract

The unavailability of valid learning media causes the lack of improvement in learning outcomes. The study aims to develop Canva-based interactive learning media using the problem-based learning (PBL) approach to improve students’ learning outcomes and creative thinking skills (CTS) on redox reaction material. The research employed the research and development (R&D) method with the ADDIE model. The subjects of the study were twelfth-grade students of SMA Negeri 2 Timang Gajah, divided into two classes: the experimental class (n=24) and the control class (n=21). Data collection instruments consisted of expert validation sheets, student response questionnaires, posttest questions, and observation sheets. Data analysis used Aiken’s V validity test, Shapiro-Wilk normality test, and paired sample t-test. The results of media expert validation showed an average feasibility of 80.70% (valid category), while material expert validation reached 95.37% (very valid). Student responses to the media showed a score of 88.8% (very positive). The average posttest score of learning outcomes in the experimental class (81.25) was significantly higher than that of the control class (50.52). Students’ CTS in the experimental class also showed improvement across all indicators (fluency 87.5; flexibility 84.3; originality 72.9; elaboration 58.3), with the average observation score of CTS reaching 80.7% (high category). The developed Canva-based interactive learning media using the PBL approach was proven to be valid, practical, and effective in improving students’ learning outcomes and CTS on balancing redox reactions
Co-Authors Halimatus Sakdhiah Ibnu Khaldun Muhamad Aditya Hidayah Muhammad Hasan Putri Nabilah Putri Rahmadani