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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) IJCER (International Journal of Chemistry Education Research)
Ramadanti, Wicahni
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Materials Science & Nanotechnology Physics

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The Effect of PjBL-Based QODE Model on Critical Thinking and Learning Achievement of Buffer Solution Topic Wulayalin, Khafifah Aulia; Zamhari, Muhammad; Ramadanti, Wicahni; Nurjanah, Stevani
IJCER (International Journal of Chemistry Education Research) VOLUME 9, ISSUE 2, OCTOBER 2025
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol9.iss2.art9

Abstract

Chemical misconceptions often occur when students need to understand the initial concept. This misconception has an impact on students' ability to understand the material and results in a decrease in students' learning achievement. Students' concept understanding can significantly improve by applying practical learning approaches, models, and strategies. This study aims to determine how applying the QODE learning model based on PjBL improves grade XI students' learning achievement and critical thinking skills on Buffer Solution topic. This type of research is a quasi-experiment with a nonequivalent control group pretest–posttest design. This study's subjects were control class for cooperative learning group investigation learning model and experimental class for PjBL-based QODE learning model at SMA Negeri 1 Sleman. Two intact classes (n = 36 per group) completed a two-tier multiple-choice critical-thinking test and an achievement test before and after a 3-session intervention. The research data were analyzed using the Wilcoxon and the N-gain tests. The Wilcoxon test result shows that both learning models used in experimental and control groups influence student learning achievement and critical thinking with the value of Sig. <0.05. N-Gain test shows that the experimental group experienced an increase of 0.74 for critical thinking skills and 0.78 for student learning achievement which in high category, while the control group experienced an increase of 0.38 for critical thinking skills and 0.73 for student learning achievement which in low and high category. These findings indicate that the QODE learning model based on PjBL contributes to improving students' critical thinking.
Pengaruh Model Pembelajaran Scramble Berbantuan Make A Match Terhadap Motivasi Belajar dan Hasil Belajar Peserta Didik Kelas X pada Materi Struktur Atom Ramadanti, Wicahni; Fikroh, Retno Aliyatul
Jurnal Penelitian Pendidikan IPA Vol 10 No 8 (2024): August
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i8.6768

Abstract

Abstract and complex learning materials presented with monotonous models can lead to decreased motivation and suboptimal learning outcomes due to student boredom. This study aims to determine the effect of the make-a-match assisted scramble learning model on grade X students' learning motivation and learning outcomes on atomic structure material. The research method was quasi-experimental with a nonequivalent pretest-posttest control group design. The research location at A Sleman High School for the 2023/2024 academic year uses two research samples: class XC as an experimental class and class XG as a control class. The sampling technique used is cluster random sampling. Data were collected using learning motivation questionnaires and test questions. The Mann-Whitney test was applied to analyze the data, revealing significance values of 0.045 and 0.000, both below the 0.05 threshold. The results indicate that the make-a-match assisted scramble learning model significantly enhances learning motivation and outcomes for class X students on atomic structure material.
Co-Authors Fikroh, Retno Aliyatul Nurjanah, Stevani Wulayalin, Khafifah Aulia Zamhari, Muhammad