This phenomenological study aimed to explore the implementation of the ALS Senior High School program in Tagum City, Davao del Norte. Also, this study aimed to discover the lived experiences, challenges, coping strategies, and insights of ALS mobile teachers in managing the implementation of the ALS senior high school program. This study was participated by the 10 ALS mobile teachers from the Schools Division of Tagum City, Davao del Norte. These participants were selected through purposive sampling and selection criteria. More so, all the ALS mobile teachers participated in in- depth interviews and focus group discussions. After a thorough analysis of the responses of the participants, the following themes emerged: difficulties and adjustments in teaching ALS – SHS; unavailability of the curriculum guide and LIS intended for ALS – SHS; difficulties in producing modules and teaching materials; lack of teachers for ALS – SHS; asking and receiving assistance from stakeholders; researching and studying; using other strategies to solve problems; managing time; positive outlooks of becoming an ALS – SHS Mobile Teacher; professional growth and personal gains; provision of additional budget, training, and teachers for ALS – SHS program; continue learning as a teacher in ALS – SHS; assessment and monitoring of the ALS – SHS Program; and designing of specific curriculum for ALS – SHS. Finally, it is understood that the results of this study could be a basis for the improvement of ALS-SHS implementation.