<![CDATA[This research is a Classroom Action Research conducted with the aim of improving students' creativity and learning outcomes through the implementation of the Project Based Learning (PjBL) model in Mathematics lessons. The subjects of this research are eighth-grade students of SMP RGM Besitang, in the 2025/2026 academic year, totaling 30 students, consisting of 13 females and 17 males. The object of this study is the Application of the Project Based Learning (PjBL) Model to improve students' creativity in Mathematics lessons for eighth-grade students at SMP RGM Besitang. Therefore, this study was conducted by carrying out a cycle review process. This research was conducted in two cycles, each consisting of two meetings. The results of observations on the application of Project Based Learning for teachers and students in Cycles I-II show that the observation results for teachers in Cycle I were 85.63%, which increased to 95.01% in Cycle II. Observation results of students in cycle I were 84.87%, and in cycle II increased to 96.57%. Based on the data, it is known that the overall average has reached the research performance indicator of 85%. Student Creativity Observation results in cycle I, meeting I had an average score of 53.4%, and in the second meeting in cycle I had an average score of 65.0%. For cycle II, in meeting I, the average was 74.9%, and for the second meeting in cycle II, the average score was 88.7%. Student Learning Outcomes in cycle I had an average score of 69.3, and in cycle II, the average score was 88.9.]]>
