The aim of this study was to apply the flipped classroom strategy in teaching English grammar to examine its impact on secondary school students' performances, perceptions, and attitudes toward learning English independently. The researcher implemented the flipped classroom strategy by selecting videos based on the students' textbook and uploading those videos on the Edmodo site before each lesson to provide opportunities for active learning interactions. The students of the experimental group (n = 20) were required to watch the videos to learn by themselves and to come to class prepared to ask for clarification, if needed. They also practiced what they had learned under the teacher's...