penerapan model problem based learning untuk meningkatkan kemampuan pemecahan…

This study aims to improve students' problem-solving ability in buffer solution material in grade XI MIPA SMAN 4 Pekanbaru by using the problem-based learning model. This study is an experimental study with a randomized control group pretest-posttest design. The population in this study consists of all Grade XI students at SMAN 4 Pekanbaru for the 2024/2025 academic year, comprising 7 classes, …