Problem Statement: Amidst the educational reform in Vietnam, Physical Education (PE) has transitioned from purely technical instruction to a model centered on developing learners' competencies and character. However, traditional teaching methods persist with numerous limitations, failing to stimulate student autonomy and resulting in physical fitness levels that fall short of prescribed goals.

Approach: This study adopts a multi-faceted approach by synthesizing the theoretical foundations of the 2018 General Education Program, surveying the current status in high schools, and conducting pedagogical experiments with active learning methods. Techniques such as Project-Based Learning (using the IPARD model: Investigation, Planning, Action, Reflection, Demonstration) and the Flipped Classroom were integrated alongside Information Technology (IT) applications.

Purpose: The research aims to develop and validate a system of innovative teaching solutions to enhance physical fitness indices and cultivate subject-specific competencies in students.

Results: Experimental results indicate that the group exposed to innovative methods showed a significant increase in physical fitness (p < 0.05), particularly in endurance and coordination. The percentage of students showing interest in the subject rose sharply from 21.9% to 88.4%, while cardiovascular functional indices also showed substantial improvement.