"This book demonstrates how the authors used radio and mobile technologies to improve educational outcomes for over 20,000 displaced and out-of-school children in northeast Nigeria at the height of the Boko Haram insurgency. Interactive Radio Instruction (IRI) programs typically interact with a functional classroom teacher. However, the transactional radio the instruction strategy presented provides high-quality, safe, and sensitive education in war-torn societies, where there are no schools or teachers. Summarizing the research and lessons learned from a USAID-funded Technology Enhanced Learning for All (TELA) project in Boko Haram-ravaged northeast Nigeria, the book describes in detail an education-in-emergency strategy based on a "whole of community" approach, with radio and mobile tablets at its core." (Publisher description)