ReFusi: Media relasi dan fungsi RME berbantuan VSCode terhadap kemampuan komunikasi matematis

Authors

  • Naomi Yoshepine Siswanto IKIP Siliwangi
  • Nelly Fitriani IKIP Siliwangi
  • Linda Linda IKIP Siliwangi

DOI:

https://doi.org/10.22460/jpmi.v9i3.31497

Keywords:

Relations and Functions Media, Visual Studio Code, Realistic Mathematics Education, Mathematical communication ability

Abstract

This study focuses on digital learning media developed using Visual Studio Code with a Realistic Mathematics Education (RME) approach, aimed at creating a Relations and Functions media (ReFusi) capable of meeting criteria for validity, practicality, and effectiveness in enhancing students’ mathematical communication skills, utilizing the ADDIE development model (Analyze, design, development, implementation, evaluation). Research participants included eighth- and ninth-grade students, subject matter and media experts, and mathematics teachers. Instruments used were expert validation sheets, student response questionnaires, and a mathematical communication ability test, analyzed using descriptive and inferential statistics. The findings indicate that the ReFusi media achieved a highly valid category, with a 94% validation rate from subject matter experts and a 91.6% rate from media experts. Small Group Evaluation and Field Trial results demonstrated practicality with rates of 76,7% and 78%, respectively. The effectiveness test using N-Gain score showed an increase of 69,8% in the experimental class, significantly outperforming the control class. The t-test results also showed a significance value of 0,001 (p < 0,05), concluding that ReFusi is effective for students’ mathematical communication ability.

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Published

2026-05-31

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Vol. 9 No. 3 (2026): JPMI

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