Abstract: Flipped classroom is one of the models that utilizes technology to provide instructional materials to students prior to the classroom sessions and uses class time to participate in meaningful learning activities. The present study primarily focuses on assessing and identifying the effectiveness of the flipped classroom approach in the academic performance of students in the subject of Mathematics in the Modern World. The experimental research design using the true control group pretest-posttest true-control group is adopted in this study. This studys participants are selected BSIT students from Quezon City University during the first semester of the 2019-2020 academic year, who are divided into two groups: the control group (50 students) and the experimental group (50 students). In determining the actual operation of the flipped classroom approach, selected faculty members of Quezon City University were asked to assess the effectiveness of the approach using the survey questionnaire. Results revealed that the flipped classroom approach in actual operations is highly effective, and there is a significant difference in the performance of the control and experimental groups after the conduct of the study. Based on the findings and conclusions of this study, it is recommended to adopt the flipped classroom approach as an alternative modality of teaching and learning.