Pengembangan Modul Ajar Menggunakan Model Pembelajaran Probing Prompting Berbasis Etnomatematika pada Materi Geometri Bangun Ruang Sisi Datar untuk Meningkatkan Kemampuan Komunikasi Matematis Siswa

Abstract

This research aims to develop a teaching module using the ethnomathematics based probing prompting learning model on the topic of Plane-Sided Space Figures to improve the mathematical communication skills of junior high school (SMP) students, ensuring it is valid, practical, and effective. This study employed the 4D development model (Define, Design, Develop, Disseminate), followed by a quasi experimental study using a non-equivalent control group design. The subjects of this research were ninth-grade students of SMP Negeri 1 Sukosari, Bondowoso. The validation results of the teaching module showed a very valid criterion with an average validity percentage of 92.5%. The practicality test results yielded a score of 91.3%, falling into the very practical category. The effectiveness test indicated a significant difference in mathematical communication skills between the experimental and control classes with sig. (p < 0,05). Thus, the ethnomathematics based probing prompting teaching module is confirmed to be valid, practical, and effective for improving the mathematical communication skills of SMP students. Based on these findings, teachers are expected to implement the probing prompting learning module by creating question guides that can enhance students' mathematical communication skills and be adapted to the local cultural context as an alternative teaching material.