<![CDATA[This study was motivated by students’ poor mastery of the concepts of momentum and impulse. The findings indicate that some students still struggle to solve physics problems and tend to memorize concepts without gaining a deep understanding of the material. This study aims to improve students’ mastery of momentum and impulse through the application of the Thinking Aloud Pair Problem Solving (TAPPS) learning model. The research design used was a quantitative descriptive study. The research population is all students of class X of Science SMA Negeri 6 Seram Bagian Timur, which totals 56 people. The research sample was 16 students of class X IPA2 SMA Negeri 6 Seram Bagian Timur. Research data were collected through a pretest, Student Worksheets (LKPD), and a posttest, and were then analyzed descriptively based on the minimum passing score (KKM) and N-Gain values. The analysis results show that students’ prior knowledge of momentum and impulse was still relatively low, with a pretest average score of 52.91. The analysis of the worksheets revealed that students had met the minimum passing score, with an average score of 83. In addition, the posttest results showed an improvement in mastery of the material, with an average score of 84.56 and an average N-Gain of 0.67, which falls into the moderate category. Based on the results of the research, it can be concluded that the application of the TAPPS learning model can increase the mastery of momentum and impulse materials in class X IPA2 students of SMA Negeri 6 Seram Bagian Timur.]]>
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