The Manual for Trainers serves as a comprehensive guide for trainers in applying content-based instruction methods to teach English to older adults, adapting to their unique pace, abilities, and needs. This manual emphasizes practical examples of international situations and the use of digital technologies to enhance learning. The overarching goal is to foster the digital and social inclusion of older adults, empowering them to participate in a rapidly evolving digital world. Key objectives include increasing digital literacy, promoting cooperative learning between older and younger adults, and developing tailored learning opportunities that merge English language skills with digital competence. The manual also supports trainers in effectively motivating older learners, ensuring knowledge transfer, and fostering a stronger sense of European identity through cross-generational and cross-cultural collaboration. By equipping trainers with these resources, the project contributes to active ageing, continuous learning, and enhanced engagement with digital platforms, while addressing the digital divide and language barriers faced by older adults in modern society.