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All Journal Mandalika Mathematics and Educations Journal
Sugiman
Universitas Negri Yogyagarta
Mathematics

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Proses Berpikir Siswa dari Situasi ke Matematika Formal Melalui Pendekatan RME dalam Penyajian Diagram Lingkaran Mey Liasta Trihastina Br Tarigan; Sugiman
Mandalika Mathematics and Educations Journal Vol 8 No 2 (2026): Edisi Juni
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jm.v8i2.11895

Abstract

This study aims to describe the students’ thinking process in learning data presentation using pie charts through the Realistic Mathematics Education (RME) approach. The method used is Design Research with two seventh-grade junior high school students in Yogyakarta as subjects. Learning is designed in stages from real-life extracurricular contexts to formal mathematical representations using doll props, conversion from fractions to percentages, calculation of angle sizes, and presentation of pie charts. The results show that the RME approach effectively enhances students' conceptual understanding gradually and encourages active involvement in modeling and independently presenting data. Although there were some technical misconceptions, teacher guidance successfully helped students overcome these difficulties. This study reinforces the importance of contextual and representational learning in improving mathematical literacy, especially skills in presenting and interpreting data using pie charts. Keywords: Data presentation 1; mathematical literacy 2; pie chart 3; Realistic Mathematics Education 4; students' thinking process 5.
Co-Authors Mey Liasta Trihastina Br Tarigan