The Effect of Problem-Based Learning Assisted by The Desmos Application on Students’ Mathematical Ability in Quadratic Function Material

Hetty Elfina (Universitas Pembinaan Masyarakat Indonesia)
Izwita Dewi (Universitas Negeri Medan)
Hamidah Nasution (Universitas Negeri Medan)

Journal of Mathematics Instruction, Social Research and Opinion
Vol. 5 No. 2 (2026): June

Problem-based learning is one instructional model that can be integrated with the Desmos application to enhance students’ mathematical abilities. This study aimed to examine the effect of problem-based learning assisted by the Desmos application on students’ mathematical abilities in the topic of quadratic functions. The research employed a quantitative approach using an experimental method involving 32 tenth-grade students. The research instrument consisted of a test in the form of a pretest and a posttest. After obtaining the pretest and posttest data, data analysis was conducted using a t-test. The results indicated a difference in students’ scores before and after the implementation of problem-based learning on quadratic function material using the Desmos application. These findings suggest that problem-based learning integrated with technological tools is effective in improving students’ mathematical abilities.