Nerlan Konga Emu Pengarang Hilda M. Nalley Penguji 1 Yanpitherzon Liunokas. S. Pd., M. Hum Ketua Penguji Elisna Huan, S. Pd., M.Hum Penguji 2

Nerlan Konga Emu. 1801020225. The Implementation of Flipped Classroom in Learning Degrees of Comparison by the Tenth Grade Students of SMA Kristen Pandhega Jaya in the Academic Year of 2021/2022. English Study Program. Thesis. Supervised by Hilda M. Nalley and Elisna Huan. The aims of this research were to find out the students' ability and perceptions of the flipped classroom implementation in learning degrees of comparison. The tenth-grade students of SMA Kristen Pandhega Jaya were chosen as the subject of this research. The research focused on implementing the flipped classroom in learning degrees of comparison. The method used in this study was quantitative and qualitative methods and the research design was Classroom Action Research (CAR) in one cycle. The techniques of data collection were pre and post-test, observation sheets, focus group discussion, and field notes and the data were analyzed quantitatively and qualitatively. The results show that the students’ scores increased significantly from pre-test to post-test. In pre-test, only 3.33% student that reached the Minimum Mastery Criteria, while in post-test it changed to 90%. Besides, the students’ mean score also improved from 30.4 to 81.4. This improvement happened because students pre-learned the materials, the learning was student-centered, and the flipped classroom was recycled. Additionally, the perceptions of the students towards the flipped classroom showed that it established their curiosity and learning ownership and adjustable to their learning pace. They also stated that it built their interaction with the teacher and other students. Therefore, they suggested this learning model to be continually implemented in learning English. In conclusion, the flipped classroom improved the students’ ability in learning degrees of comparison