Model Pembelajaran Realistic Mathematics Education (RME) Melalui Aplikasi Cabri 3D terhadap Pemahaman Siswa Pada Materi Geometri Ruang

Makmur; Ernawati; Nirfayanti; Ita Suryaningsih

doi:10.46918/equals.v8i1.2767

Authors

Makmur Universitas Muslim Maros
Ernawati Universitas Muslim Maros
Nirfayanti Universitas Muslim Maros
Ita Suryaningsih Pendidikan Bahasa dan Sastra Indonesia, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Muslim Maros

DOI:

https://doi.org/10.46918/equals.v8i1.2767

Keywords:

Pembelajaran RME, Cabri 3D, Pemahaman Konsep, Geometri Ruang

Abstract

This study was prompted by students' low conceptual understanding of solid geometry, especially in visualizing three-dimensional objects. The purpose of this research was to investigate the effect of the Realistic Mathematics Education (RME) model assisted by the Cabri 3D application on students’ conceptual understanding. A quantitative approach was employed with a quasi-experimental design of the non-equivalent control group type. The subjects were two eighth-grade classes, each consisting of 28 students, assigned to experimental and control groups. The research instrument consisted of Pretest and Posttest assessments. The results showed that the experimental group’s average Pretest score increased from 60.36 to 83.57, while the control group increased from 59.21 to 73.18. The gain score for the experimental group was 0.59 (medium category), higher than the control group’s 0.42 (medium category). Improvement in five conceptual indicators was also more significant in the experimental group. An independent sample t-test revealed a significant difference between the two groups with a p-value of 0.004 < 0.05. Therefore, the RME model supported by Cabri 3D is proven effective in improving students’ conceptual understanding in solid geometry

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