Implementasi Bahan Ajar Matematika Berdiferensiasi Berbasis PhET Simulation dalam Meningkatkan Kemampuan Numerasi Siswa

Abstract

This study aims to investigate the effectiveness of differentiated mathematics learning materials based on PhET Simulations in improving students’ numeracy skills, particularly in understanding fractions. The research employed a quasi-experimental design with an equivalent control group consisting of seventh-grade students at SMP Negeri 4 Binjai, North Sumatra. The experimental class used differentiated instructional materials integrated with PhET Simulations, while the control class followed conventional learning. Data were analyzed using paired and independent sample hypothesis tests, as well as ANOVA for comparing multiple groups. The results revealed that students taught using differentiated materials supported by PhET Simulations achieved significantly higher post-test scores in numeracy than those in the control group. The findings also indicated no significant difference in numeracy improvement among students with high, medium, and low prior mathematical abilities, suggesting that the approach is effective across varying academic levels. Furthermore, the implementation fostered essential character values such as critical thinking, collaboration, creativity, and integrity. The study concludes that integrating differentiated materials with interactive digital simulations enhances conceptual understanding of fractions and supports the development of students’ numeracy competence in technology-based mathematics learning environments.