PENGARUH MODEL PEMBELAJARAN RELATING, EXPERIENCING, APPLYING, COOPERATING, AND TRANSFERRING (REACT) TERHADAP PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIS DITINJAU DARI MOTIVASI BELAJARMUHAMMADMUISauthorThis study aims to determine the effect of the Relating, Experiencing, Applying, Cooperating, and Transferring (REACT) learning model on improving mathematical problem-solving abilities in terms of learning motivation. The population in this study were 287 students of grade XI even semester at MA Negeri 1 Kota Serang in the 2024/2025 academic year and the sample consisted of 26 students of grade XI IPA 1 and 26 students of grade XI IPA 3. The research method used was a quasi-experimental design with a non-equivalent control group design. The sampling technique in this study used a purposive sampling technique. The research instruments included a mathematical problem-solving ability test and a learning motivation questionnaire. Data were analyzed using a two-way ANOVA test. The results of the study can be concluded that: 1) there is an influence of the REACT learning model on improving mathematical problem-solving abilities, 2) there is an influence of learning motivation (high, medium, low) on improving mathematical problem-solving abilities after implementing the learning model, and 3) there is an interaction between the REACT learning model and learning motivation on improving mathematical problem-solving abilities.L Education (General)2026UNIVERSITAS SULTAN AGENG TIRTAYASA;PENDIDIKAN MATEMATIKAThesis