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The Effect of Wordwall-Assisted STAD Cooperative Learning Model to Improve Students' Problem-Solving Ability in Two-Variable Linear Equation Systems for Grade VIII Students at SMP St. Yoseph Medan

Authors

  • David Rimson Sinabutar Universitas Katolik Santo Thomas image/svg+xml
    • Conceptualization
    • Methodology
    • Writing – Original Draft Preparation
  • Imelda Universitas Katolik Santo Thomas image/svg+xml
    • Supervision
    • Validation
  • Israil Sitepu Universitas Katolik Santo Thomas image/svg+xml
    • Data Curation
    • Methodology
    • Project Administration
    • Resources

DOI:

https://doi.org/10.59211/mjpjetl.v4i2.446

Keywords:

STAD, Wordwall, Mathematical problem solving ability, Paired sample t-test, N-Gain

Abstract

This study aims to determine the effect of the Student Teams Achievement Division (STAD) cooperative learning model assisted by Wordwall on the mathematical problem-solving abilities of eighth-grade students of St. Yoseph Catholic Private Junior High School Medan in the 2025/2026 Academic Year and the improvement of students' mathematical problem-solving abilities after the model is implemented. This study uses a quantitative approach with the Pre-Experimental Design method using the One Group Pretest-Posttest Design. The research sample consisted of 36 students. Data analysis used normality tests, Paired Sample t-Test, and N-Gain. The results showed that the average pretest score of 50.806 increased to 80.167 in the posttest. The results of the hypothesis test obtained tₕᵢₜᵤₙg = 53.303 and tₜₐᵦₑₗ = 2.030, so that H₀ was rejected and Hₐ was accepted. The N-Gain test results obtained an average of 0.611, categorized as moderate. Thus, it can be concluded that the Student Teams Achievement Division (STAD) cooperative learning model assisted by Wordwall has a significant effect and is able to improve students' mathematical problem-solving abilities.

Authors and contributors

3
  • Indonesia

    Author

    Universitas Katolik Santo Thomas ROR

    • Conceptualization
    • Methodology
    • Writing – original draft
  • Indonesia

    Author

    Universitas Katolik Santo Thomas ROR

    • Supervision
    • Validation
  • Indonesia

    Author

    Universitas Katolik Santo Thomas ROR

    • Data curation
    • Methodology
    • Project administration
    • Resources

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David Rimson Sinabutar, Imelda, & Israil Sitepu (2026). The Effect of Wordwall-Assisted STAD Cooperative Learning Model to Improve Students' Problem-Solving Ability in Two-Variable Linear Equation Systems for Grade VIII Students at SMP St. Yoseph Medan. Journal of Education and Teaching Learning, 4(2), 599–609. https://doi.org/10.59211/mjpjetl.v4i2.446

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