Muhammad Sayyadi

Universitas Malang 

Moh Ahsan

Universitas Malang 

Akhmad Jufriadi

Universitas Malang 

DOI: https://doi.org/10.19184/se.v8i1.53697 

ABSTRACT 

This research utilizes a frequency generator application on smartphones to enhance students' understanding of the concept of sound resonance in closed organ pipes. The study employs a pre-test-post-test design with a control group that was not selected randomly. The method used is non-probabilistic sampling (convenience sampling). The sample used in this study consists of fourth-semester students in the Elementary Teacher Education (PGSD) program who are enrolled in the science-learning course. Data collection was conducted using a Concept Understanding Instrument Sheet. The percentage of students' concept understanding above the average increased from 40.1% to 63.4%. This indicates that the concept understanding attained improved after receiving treatment in the form of the frequency generator application. The N-Gain test results yielded an average score of 0.68.

Keywords: Application; Concept understanding; Sound propagates quickly