The Effectiveness of STEM-Based Project-Based Learning (PjBL) Model in Improving Elementary School Students' Science Learning Outcomes

Main Article Content

Rahma Diani
Yuberti
Ida Fiteriani
Renita Lestari
Mega Aria Monica

Abstract

This study aims to determine the effectiveness of the STEM-based project-based learning (PjBL) model in improving students' basic science learning outcomes. The study was conducted at MIS Darul Huda Campang Jaya, Bandar Lampung. This study employed a quantitative method with a quasi-experimental design, specifically the pretest and posttest control group design. The sample consisted of 78 students, divided equally into an experimental class (39 students) and a control class (39 students), selected via simple random sampling. The research instrument was a 20-item multiple-choice science achievement test, which was validated by two science education experts and one science teacher. The validity of each test item was analyzed using Pearson Product-Moment Correlation, while reliability testing using Cronbach's Alpha obtained a coefficient of 0.86, indicating high reliability. Data analysis techniques included normality testing with the Kolmogorov–Smirnov test, homogeneity testing with Levene's Test, and hypothesis testing with the independent-samples t-test. The results showed that the significance value of 0.000 < 0.05 indicated a significant difference in students' science learning outcomes between the experimental and control classes. The findings confirmed that implementing the STEM-based PjBL model effectively improved conceptual understanding, critical thinking, and collaboration skills through contextual, hands-on learning experiences. Therefore, this model can be recommended as an innovative approach to enhancing 21st-century competencies in elementary school science learning.

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The Effectiveness of STEM-Based Project-Based Learning (PjBL) Model in Improving Elementary School Students’ Science Learning Outcomes. (2025). JIP Jurnal Ilmiah PGMI, 11(2), 161-173. https://doi.org/10.19109/jip.v11i2.31511
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How to Cite

The Effectiveness of STEM-Based Project-Based Learning (PjBL) Model in Improving Elementary School Students’ Science Learning Outcomes. (2025). JIP Jurnal Ilmiah PGMI, 11(2), 161-173. https://doi.org/10.19109/jip.v11i2.31511

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