The implementation of online learning using the PQ4R assisted the 5E learning cycle model in understanding the concept of buffer solution.

A complete understanding of the chemistry concept needs to be possessed by students no matter during offline or online learning. The purpose of this study was to determine students' conceptual understanding after being given online learning using the 5E learning cycle model assisted by the PQ4R strategy on the buffer solution topic. The study was conducted using a pre-experiment using a one-shot case study design. As many as 45 students of the fifth-semester Chemistry Education study program who take high school chemistry courses participate in this study. The data were collected by measurement using an assessment instrument in essay questions. According to analysis, students' conceptual understanding in the poor category is 14.29%, the average category is 35.71 %, the good category is 42.86%, and the excellent category is 7.14%. On average, students have a good understanding of concepts after being given online learning using the 5E learning cycle model assisted by the PQ4R strategy on buffer solution material. [ABSTRACT FROM AUTHOR]