The Secondary Level ALM Toolkit aims to provide education planners, policymakers, and program implementers in Southeast Asia with an overview of alternative methods for delivering secondary-level education in the region. This Toolkit includes a description of the rationale, common challenges in implementing ALMs, and characteristics of successful alternative delivery programs. The Secondary Level ALM Toolkit contains case examples of alternative delivery programs being implemented in selected Southeast Asian countries, highlighting best practices, and including a list of existing secondary level ALM programs and implementing offices, education ministries, and links to relevant ALM resources and websites. The Toolkit presents a systematic and organized information on different secondary level ALM programs developed and implemented in selected countries in Southeast Asia. Module 1 presents an overview of Alternative Learning Modalities, including a brief background on the challenges faced by learners enrolled in secondary education programs. This module includes the factors that can push or pull-out learners from completing their secondary education.