PENGARUH PENDEKATAN MATEMATIKA REALISTIK TERHADAP KEMAMPUAN PEMECAHAN MASALAH DAN KEMAMPUAN KOMUNIKASI MATEMATIKA PESERTA DIDIK PADA MATERI OPERASI ALJABAR DI KELAS VII SMP SWASTA HKBP SIDORAME T.p. 2019/2020

Parhusip, Bung Heri

Jurnal Visi Eksakta
Vol. 6 No. 1 (2025): Jurnal Visi Eksakta : Edisi Januari

The population of this study were seventh grade students of SMP Swasta HKBP Sidorame 2019/2020 which consisted of 1 class. The sampling technique in this study was Saturated Sampling. This research includes quasi-experimental research. “The experimental research method can be interpreted as a research method used to seek the effect of certain treatments on others in controlled conditions” (Sugiono, 2008: 72). This study aims to see if there is an effect of realistic mathematics approach on problem solving ability and mathematical communication ability of students. The research design used is Posttest Group Design. The sample consists of one class, namely the experimental class. This study involves one class that is given treatment to find out the problem solving and communication skills of students which is done by giving a test to one class after being treated, it can be obtained that the effect of the realistic mathematics approach on the problem solving ability of students is 69.3%, and on the relationship between X and Y2 the coefficient of determination obtained from the calculation = 65.20%. The coefficient of determination r2 = 0.652. So, it can be obtained that the influence of the realistic mathematics approach on communication skills is 65.20%.