Physical education (PE) develops students’ motor skills, knowledge, and behaviors for active living. As such, individuals need to participate in various physical activities (PA) which contribute to a healthy lifestyle. But many PE programs fail to bring the actual value of a lifetime PA and fitness. Therefore, there should be extended scientific research that promotes participation level as a health intervention that will promote health and wellness. Through this, an exploratory- sequential mixed method inquiry was utilized to gather insights of senior high school PE teachers towards the development of physical activity plan (PAP). Likewise, the remaining senior high school PE teachers in the province assessed the degree of alignment of the PAP in the most essential learning competencies in PE, and the degree of the practical application of the developed PAP in PE instruction. The qualitative results summarized the general ideas of PE teachers regarding the PAP. They have specific suggestions on what topics, PA, and classroom assessment tools should be included in the plan related to the competencies in PE 1, PE 2, PE 3, and PE 4. As such, a series of performance rubrics have been attached to the plan. Moreover, the quantitative results revealed that the developed PAP has a high degree of alignment with the current competencies in the senior high school PE curriculum. Likewise, the developed PAP has a high degree of practical application in PE instruction. Integrating the data in the two phases of the data collection, showed that the developed PAP can be implemented in the senior high school PE curriculum. As such, the PAP may be utilized as the baseline for PE teachers for implementation. Moreover, future researchers may address the limitations of the conducted study.