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All Journal Didaktik : Jurnal Ilmiah PGSD STKIP Subang Journal Educational Research and Development
Nadia Koesvahana
Universitas Riau
Education Languange, Linguistic, Communication & Media Other

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PENERAPAN PROBLEM BASED LEARNING (PBL) DALAM KONSEP WUJUD ZAT DAN PERUBAHANNYA MELALUI EKSPERIMEN HUJAN PELANGI DI SDN 188 PEKANBARU Nadia Koesvahana; Dhiya Sutrina, Neni Hermita; Rifqa Gusmida Syahrun Barokah
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 11 No. 02 (2025): Volume 11 No. 02 Juni 2025 In Build
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v11i02.6501

Abstract

This study examines the effectiveness of Problem-Based Learning (PBL) through a rainbow rain experiment to improve students' understanding of matter states and changes at SDN 188 Pekanbaru. Using a qualitative approach, 25 fourth-grade students were observed through worksheets, documentation, and pre-test–post-test design. The experiment used water, food coloring, and cooking oil to visualize density and solubility concepts. The learning applied five PBL syntaxes: problem orientation, student organization, guided investigation, developing artifacts, and problem-solving evaluation. Results showed average scores increased from 48 to 75 (56.25%), with all students scoring above 60. Students were actively engaged, showing improved critical thinking and scientific skills. The study concludes that combining PBL with simple, hands-on experiments can be an effective and practical science teaching strategy in elementary education.
Peran Statistik dalam Meningkatkan Kualitas Penelitian Pendidikan Innaya Meidini Sastri; Nadia Koesvahana; Jesi Alexander Alim; Mitha Dwi Anggriani
Journal Educational Research and Development | E-ISSN : 3063-9158 Vol. 2 No. 1 (2025): Juli - September
Publisher : GLOBAL SCIENTS PUBLISHER

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Abstract

This study examines the role of statistics in enhancing the quality of educational research. Statistics serve as a scientific foundation that not only provide analytical tools but also reinforce the validity, reliability, and objectivity of research outcomes. Using a descriptive qualitative approach through a literature review, the study reviews scholarly works highlighting how statistics support various research stages, including sampling, instrument development, data processing, and analysis. Findings show that applying statistics allows educational research to be more evidence-based, measurable, and accountable. However, challenges remain, both in Indonesia and globally, such as limited data quality, institutional coordination, human resource capacity, and adaptation to digital technologies. To address these issues, strengthening statistical literacy and regulations is essential so that statistical data remain relevant and support evidence-based education policies.
Co-Authors Anggriani, Mitha Dwi Dhiya Sutrina, Neni Hermita Innaya Meidini Sastri Jesi Alexander Alim Rifqa Gusmida Syahrun Barokah