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All Journal Jurnal Ilmiah Kanderang Tingang BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan
Siska Alvionita
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Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Education Energy Engineering Other

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META-ANALYSIS OF THE EFFECT OF PROBLEM-BASED LEARNING (PBL) ON CHEMISTRY LEARNING OUTCOMES Siska Alvionita
BALANGA: Jurnal Pendidikan Teknologi dan Kejuruan Vol. 13 No. 1 (2025): Journal Balanga Edisi Januari-Juni 2025
Publisher : Jurusan Pendidikan Teknologi dan Kejuruan, FKIP, Universitas Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/balanga.v13i1.17368

Abstract

This study aims to re-analyze the effectiveness of the Problem Based Learning (PBL) learning model on students' Chemistry learning outcomes. The type of research is meta-analysis research. The subjects of this study are 14 articles that have been published over the past 10 years by several national and international journals and can be accessed online through ERIC and Google Scholar. The research instrument used is a coding sheet. The method of information analysis uses quantitative descriptive analysis with effect size guidelines. After getting the effect size value, then the effect size can be categorized into levels or categories of effect size. The results of this meta-analysis study show that the PBL learning model is very influential in improving students' Chemistry learning outcomes with the lowest percentage of 5.44% to the highest reaching 120.59%. Based on the results of the meta-analysis, it also shows that if the PBL learning model has a high influence, there are students' Chemistry learning outcomes when viewed through the effect size by getting an average of 2.659984005. At the high school education level, the average effect size is 2.571626429 and the university level is 3.190129466. The average effect size of research published in Indonesia has an average effect size of 2.642521674 and research published abroad has an average effect size of 2.683267114. It can be concluded that the PBL learning model is very effective in learning Chemistry to improve student learning outcomes.
Peningkatan Pemahaman Keselamatan dan Penggunaan Peralatan Laboratorium Kimia Melalui Pembelajaran Praktis Siska Alvionita; Triliyansi, Triliyansi; Asi, Nopriawan Berkat
Jurnal Ilmiah Kanderang Tingang Vol 16 No 1 (2025): Jurnal Ilmiah Kanderang Tingang
Publisher : FKIP Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jikt.v16i1.390

Abstract

This study aims to evaluate the effectiveness of practical learning activities in the chemistry laboratory of Palangka Raya University on increasing the understanding of SMAN 2 Kahayan Tengah students regarding the safety and use of chemistry laboratory equipment. This study uses a pre-experimental design with a one-group pretest-posttest approach. Grade XI students who participated in practical learning activities included the delivery of laboratory safety materials, introduction to laboratory tools and instruments, and demonstrations of simple chemical experiments. Student comprehension data was collected through pretest and posttest, then analyzed using the Wilcoxon signed-rank test and N-gain calculation. The results showed a significant increase (p < 0.05) between pretest scores (mean = 62.00) and posttest (mean = 80.33), with an average N-gain value of 0.48 which was included in the medium category. The conclusion of this study is that practical learning activities in the chemistry laboratory of the University of Palangka Raya are effective in improving the understanding of SMAN 2 Kahayan Tengah students regarding the safety and use of chemistry laboratory equipment.
Co-Authors Asi, Nopriawan Berkat Triliyansi, Triliyansi