PERKEMBANGAN KEMAMPUAN KOMUNIKASI MATEMATIS PESERTA DIDIK MELALUI PENDEKATAN REALISTIC MATHEMATICS EDUCATION PADA TRANSFORMASI GEOMETRI

Authors

  • Fadiyah Yonita Universitas Negeri Padang, Indonesia Author
  • Yulyanti Harisman Universitas Negeri Padang, Indonesia Author
  • Fitrani Dwina Universitas Negeri Padang, Indonesia Author
  • Yarman Yarman Universitas Negeri Padang, Indonesia Author

DOI:

https://doi.org/10.54314/jssr.v9i5.7194

Keywords:

komunikasi matematis, Realistic Mathematics Education, transformasi geometri

Abstract

Abstract: Students’ ability to communicate mathematical thinking in written form remains one of the challenges in mathematics learning. To provide students with opportunities to express and represent mathematical ideas, learning activities that encourage their involvement in the mathematization process are needed. This study aims to describe the development of students’ written mathematical communication skills through the Realistic Mathematics Education (RME) approach in geometry transformation. The study employed a quantitative approach with a descriptive method. The subjects were 21 students of class IX.1 at SMP Pertiwi 2 Padang in the first semester of the 2026/2027 academic year. The learning activities were conducted in six meetings covering translation, reflection, rotation, and dilation. Data were collected through quizzes administered at each meeting, which were developed based on four indicators of mathematical communication skills and analyzed descriptively using the mean quiz scores and the scores for each indicator. The results showed that the mean quiz score increased from 62.50 in the first meeting to 85.71 in the sixth meeting. All four indicators of mathematical communication also showed improvement across the measurements. Thus, students’ written mathematical communication skills demonstrated development during learning using the RME approach in geometry transformation. Learning through the RME approach provides students with opportunities to develop written mathematical communication skills through contextual problems, the use of various representations, and problem solving

Keywords: mathematical communication; Realistic Mathematics Education; geometry transformation.

 

Abstrak: Kemampuan peserta didik dalam mengomunikasikan pemikiran matematis secara tertulis masih menjadi salah satu permasalahan dalam pembelajaran matematika. Untuk memberikan ruang bagi peserta didik dalam menyampaikan dan merepresentasikan ide matematis, diperlukan pembelajaran yang mendorong keterlibatan mereka dalam proses matematisasi. Penelitian ini bertujuan untuk menggambarkan perkembangan kemampuan komunikasi matematis tertulis peserta didik melalui pendekatan Realistic Mathematics Education (RME) pada materi transformasi geometri. Penelitian menggunakan pendekatan kuantitatif dengan metode deskriptif. Subjek penelitian adalah 21 peserta didik kelas IX.1 SMP Pertiwi 2 Padang pada semester ganjil tahun ajaran 2026/2027. Pembelajaran dilaksanakan dalam enam pertemuan yang mencakup materi translasi, refleksi, rotasi, dan dilatasi. Data dikumpulkan melalui kuis pada setiap pertemuan yang disusun berdasarkan empat indikator kemampuan komunikasi matematis dan dianalisis secara deskriptif melalui rata-rata nilai kuis serta skor setiap indikator. Hasil penelitian menunjukkan bahwa rata-rata nilai kuis meningkat dari 62,50 pada pertemuan I menjadi 85,71 pada pertemuan VI. Keempat indikator komunikasi matematis juga menunjukkan peningkatan pada setiap pengukuran. Dengan demikian, selama pembelajaran menggunakan pendekatan RME pada materi transformasi geometri, kemampuan komunikasi matematis tertulis peserta didik menunjukkan perkembangan. Pembelajaran dengan pendekatan RME memberikan ruang bagi peserta didik untuk mengembangkan kemampuan komunikasi matematis tertulis melalui masalah kontekstual, penggunaan berbagai representasi, dan penyelesaian masalah.

Kata kunci: komunikasi matematis; Realistic Mathematics Education; transformasi geometri.

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Published

2026-10-12

How to Cite

PERKEMBANGAN KEMAMPUAN KOMUNIKASI MATEMATIS PESERTA DIDIK MELALUI PENDEKATAN REALISTIC MATHEMATICS EDUCATION PADA TRANSFORMASI GEOMETRI. (2026). JOURNAL OF SCIENCE AND SOCIAL RESEARCH, 9(5), 7952 – 7963. https://doi.org/10.54314/jssr.v9i5.7194