Pengaruh Model Problem Based Learning Berbantuan Geometer’s Sketchpad terhadap Penalaran Logis Matematis Siswa SMP pada Materi Segiempat

Abstract

This study investigates the impact of implementing a Problem Based Learning (PBL) model supported by Geometer’s Sketchpad (GSP) software on students’ mathematical logical reasoning abilities in the context of quadrilateral topics at the junior secondary school level. Driven by the urgent need to enhance higher-order thinking skills, particularly logical reasoning in mathematics, the research employs a quasi-experimental design involving two groups: an experimental group using PBL with GSP and a control group using PBL without GSP. The participants comprised 50 seventh-grade students from MTs 109 Kujang Ciamis, randomly assigned to each group. Data were collected through validated written tests administered before and after the intervention, spanning nine sessions within two weeks. Statistical analysis, including paired and independent sample t-tests, was conducted to determine the significance of differences in students’ reasoning abilities. The findings reveal that, although both groups showed an increase in average post-test scores, there was no statistically significant effect of the PBL model with GSP on students’ logical reasoning abilities compared to PBL without GSP. Furthermore, no significant difference was observed between the two groups in the post-test results. The research concludes that, under the given conditions and duration, the integration of GSP into the PBL model did not significantly improve students’ mathematical logical reasoning. The study recommends further exploration with extended duration, broader materials, and enhanced support for both students and teachers to maximize the potential of technology-assisted mathematics learning.