This study was motivated by the low level of student learning engagement in the Islamic Religious Education (PAI) and Character Education subject; consequently, there is a need for teaching strategies and media capable of enhancing student involvement in the learning process. The study aims to determine the effect of the Synergetic Teaching strategy, supported by Lumi Education media, on student learning engagement in the PAI and Character Education subject among Grade XI students at SMA Negeri 1 Batang Anai, Padang Pariaman Regency. A quantitative approach was employed using an experimental method and a quasi-experimental design—specifically, a pretest-posttest non-equivalent control group design. The study population consisted of 300 Grade XI students from the 2026/2027 academic year. The sample was selected using purposive sampling, with class XI-7 serving as the experimental group and class XI-8 as the control group, each comprising 34 students. Data were collected via learning engagement questionnaires and documentation, then analyzed using normality, homogeneity, and hypothesis tests with the aid of SPSS version 26. The results indicate that the average learning engagement in the experimental group rose from 83.79 in the pretest to 93.59 in the posttest, while the control group increased from 64.53 to 69.62. Hypothesis testing yielded a significance value of 0.000 (< 0.05), leading to the rejection of H₀ and the acceptance of Hₐ. These findings demonstrate that the implementation of the Synergetic Teaching strategy supported by Lumi Education media has a significant effect on student learning engagement in the PAI and Character Education subject. Thus, the Synergetic Teaching strategy, supported by Lumi Education media, serves as a viable instructional alternative for enhancing student engagement.