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Jambura Journal of Educational Chemistry
Published by Universitas Negeri Gorontalo
ISSN : 26557606     EISSN : -     DOI : -
Core Subject : Science, Education,
Chemistry Education Other
The Journal of Educational Chemistry (JJEC) is the official journal of Chemistry Department, Faculty Mathematic and Natural Science, Gorontalo State University. JJEC is peer-reviewed articles publish articles twice a year in February and August. JJEC typically addresses chemical content, chemical education research, results of thought and research, instructional methods, and laboratory experiments.
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Articles 13 Documents
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Search results for , issue "Vol 8, No 1 (2026): February" : 13 Documents clear
Effects of the Teams Games Tournament (TGT) Learning Model Assisted by Spinning Wheel Media on Students’ Learning Outcomes in Atomic Structure Lokollo, Lita; Utubira, Yeslia
Jambura Journal of Educational Chemistry Vol 8, No 1 (2026): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v8i1.36598

Abstract

Atomic structure material is abstract and requires a strong conceptual understanding, so innovative learning models and media that actively engage students are needed. This study seeks to investigate the impact of the Teams Games Tournament (TGT) learning model, supported by spinning wheel media, on the learning outcomes of Grade X high school students in atomic structure. The study employed a quantitative approach using a quasi-experimental method with a pretest–posttest control group design. The research sample consisted of two classes, namely class X1 as the control class and X7 as the experimental class, each comprising 27 students. The collected data were analyzed using descriptive and inferential statistical techniques with SPSS. Analysis using the Mann–Whitney U test indicated a significance level of 0.046 (p < 0.05), confirming that the learning outcomes differed significantly between the experimental and control groups. Students in the experimental class, where the TGT model supported by spinning wheel media was applied, achieved higher learning outcomes compared to those in the control class using traditional teaching methods. Therefore, it can be determined that the Teams Games Tournament learning model supported by spinning wheel media results in a significant improvement in students’ learning outcomes in atomic structure and can serve as an innovative alternative in high school chemistry learning.
Effects of POGIL and Verification Approaches on Students’ Cognitive Achievement in Reaction Rate: The Moderating Role of Scientific Reasoning Kurniawati, Erga; Thayban, Thayban; Munandar, Haris
Jambura Journal of Educational Chemistry Vol 8, No 1 (2026): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v8i1.37519

Abstract

This study examined the effectiveness of the Process Oriented Guided Inquiry Learning (POGIL) approach in improving students’ conceptual understanding of reaction-rate concepts and investigated whether scientific reasoning skills moderate the effect of instructional model in a 2×2 factorial design. Forty-four tenth-grade science students from two intact classes were matched and categorized into high and low scientific reasoning groups. Conceptual understanding was measured using a two-tier diagnostic test, and assumptions for Two-Way ANOVA were verified before analysis. Results indicated a significant main effect of instructional model, with POGIL achieving higher scores than verification-based instruction (F = 20.385, p < 0.001, η² = 0.29). Scientific reasoning also significantly influenced outcomes (F = 7.328, p = 0.010, η² = 0.10). The interaction between instructional model and reasoning was not statistically significant (F = 2.559, p = 0.118), indicating that the interaction effect was not statistically significant in this sample. POGIL is theoretically expected to support integration of macroscopic, submicroscopic, and symbolic representations through guided inquiry and collaborative scaffolding. Limitations include the small sample size and quasi-experimental design. These findings highlight the potential of guided inquiry-oriented instruction to enhance conceptual understanding while emphasizing the role of reasoning skills, with cautious interpretation of non-significant interactions.
STEM-Integrated Problem-Based Learning as a Cognitively Aligned Framework for Enhancing Critical Thinking in Thermochemistry Condong, Dea Marsanda; Sihaloho, Mangara; Thayban, Thayban; Laliyo, Lukman Abdul Rauf; Musa, Weny J.A.; Kurniawati, Erga; Munandar, Haris; Nggole, Siti Istiqomah
Jambura Journal of Educational Chemistry Vol 8, No 1 (2026): February
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjec.v8i1.37514

Abstract

Developing students’ critical thinking skills remains a major challenge in chemistry education, particularly in thermochemistry, which requires conceptual, symbolic, and quantitative reasoning. While STEM-integrated problem-based learning (PBL–STEM) has gained increasing attention, limited studies have examined how this instructional approach aligns with the cognitive structure of critical thinking. This study investigated the effect of the PBL–STEM model on students’ critical thinking skills in thermochemistry. A quasi-experimental design involving 64 tenth-grade students was employed. Participants were selected using purposive sampling and assigned to an experimental group and a control group. Critical thinking skills were measured using a 20-item essay test based on Facione’s framework. The instrument demonstrated high reliability (Cronbach’s α = 0.915) and strong content validity (CVI = 0.93). Data were analyzed using an independent-samples t-test. Results showed a significant difference between groups (t = 4.997, p < 0.05), with the experimental group achieving higher mean scores (M = 80.80) than the control group (M = 65.38). The effect size (Cohen’s d = 1.25) indicates a large instructional impact. These findings suggest that STEM-integrated PBL provides a cognitively aligned framework for fostering critical thinking in chemistry learning.

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