This document is an introduction to a resource developed by UNESCO to support teachers in developing strategies for curriculum differentiation to respond to student diversity. It discusses the importance of education in enhancing participation and promoting inclusion. It emphasizes that teachers play a key role in achieving the goals of Education for All by ensuring quality education is accessible and relevant to all students, regardless of their backgrounds or needs. The resource aims to provide teachers with support and encouragement to use new teaching methods that better meet the needs of all children in their classrooms.