Effectiveness of TGT Model on Communication Skills of Grade II Elementary School Students: Experimental Study

Authors

  • AFRI MARDICKO Univ. Muhammadiyah Pringsewu
  • Akmal Rijal Universitas PGRI Silampari
  • Rully Sulistiowati

DOI:

https://doi.org/10.32938/jipm.v10i2.9780

Keywords:

TGT Model, Mathematical Communication Ability, Elementary School Students, Cooperative Learning, True Experimental

Abstract

This study aims to test the effectiveness of the Teams Games Tournament (TGT) learning model on the mathematical communication skills of grade II elementary school students. The research method used is a true experimental design with a posttest-only control group, involving two classes at SDN 3 Podomoro (n = 51). The instrument consists of six descriptive questions, which were tested for validity and reliability (α = 0.708). The results of the analysis using the Mann–Whitney U test showed a significant difference between the experimental and control classes (p < 0.001), with average values ​​of 67.6 and 44.0, respectively. The magnitude of the effect was calculated using Cliff's Delta (δ = 0.808), which indicated a significant impact. However, the test instrument was dominated by easy items, causing a ceiling effect in the experimental class (36% of students achieved the maximum score). It is recommended to revise the instrument with "moderate and difficult" questions and integrate interactive technology. This study is limited to a single school and level, so the generalizability of the results needs to be done carefully.

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Published

2025-08-31

How to Cite

MARDICKO, A., Rijal, A., & Sulistiowati, R. (2025). Effectiveness of TGT Model on Communication Skills of Grade II Elementary School Students: Experimental Study. MATH-EDU: Jurnal Ilmu Pendidikan Matematika, 10(2), 221–235. https://doi.org/10.32938/jipm.v10i2.9780

Issue

Vol. 10 No. 2 (2025): MATH-EDU: Jurnal Ilmu Pendidikan Matematika

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Articles

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Copyright (c) 2025 AFRI MARDICKO, Akmal Rijal, Rully Sulistiowati

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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