This study's objective was to describe students' problem-solving skills. The purposive selection method was used to pick the sample from among 65 participants from 11 classes. Data are gathered via a test of problem-solving aptitude. Its four indicators are problem identification, problem formulation, problem resolution, and problem assessment. Project-Based Learning (PjBL) in Science, Technology, Engineering, and Mathematics (STEM) is increasing efficacy, creating meaningful learning, and influencing student attitudes toward future career pursuits. Project-based learning with a STEM focus causes learning (PjBL). Students' abilities to plan, communicate, solve problems, and come to the best judgments from the difficulties presented are all improved by the learning. Students' abilities to plan, organize, negotiate, and make agreements about the tasks to be completed, who is responsible for each activity, and how the information will be gathered and presented can be developed through this learning.