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All Journal Proceeding of International Conference on Biology Education, Natural Science, and Technology
Dewi Lestari Mardlotillah
Universitas Muhammadiyah Surakarta
Biochemistry, Genetics & Molecular Biology Chemistry Education Physics

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The Effectiveness of the Team Games Tournament (TGT) Cooperative Learning Model on Students' Biology Learning Outcomes in the Circulatory System: A Case Study in Class XI-2 at SMA Muhammadiyah PK Surakarta Guntur Nurcahyanto; Ulya Ananda Putri Febrianti; Dewi Lestari Mardlotillah
Proceeding of International Conference on Biology Education, Natural Science, and Technology 2026: Proceeding of International Conference on Biology Education, Natural Science, and Technology
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The biology learning outcomes of eleventh-grade (XI-2) students at SMA Muhammadiyah PK Surakarta regarding the human circulatory system remain low, with all students failing to meet the Minimum Mastery Criteria (KKM) due to a lack of active engagement. This study aims to investigate the effectiveness of the Team Games Tournament (TGT) model on students' biology learning outcomes. Employing a quantitative approach with a pre-experimental one-group pretest-posttest design, the study involved 19 students selected via purposive sampling. Data were collected using an essay test and subsequently analyzed using a paired-samples t-test, Cohen’s d effect size, and normalized gain (N-gain). The findings demonstrate that the TGT learning model significantly enhances biology learning outcomes on the circulatory system topic for this case study in class XI-2 at SMA Muhammadiyah PK Surakarta. This is evidenced by a statistically significant increase in the mean score from 27.89 at the pre-test to 75.58 at the post-test (p < .001). A Cohen’s d value of 6.83 indicates a substantial practical impact, supported by a moderate average N-gain of 0.660. In conclusion, the TGT model is highly effective in improving student learning outcomes while providing empirical evidence of successful cooperative learning within the framework of the Kurikulum Merdeka (Independent Curriculum).
Co-Authors Guntur Nurcahyanto Ulya Ananda Putri Febrianti