The document discusses curriculum and syllabus design for 21st century students in teaching English as a foreign language. It explains that syllabus design involves a set of decisions made by teachers regarding the elements that intervene in the teaching-learning process according to the school's educational project and students' needs. Specifically, it notes that syllabus design has different levels including the curriculum, year syllabus, unit of work syllabus, and classroom planning levels. At the unit of work level, teachers teaching the same year are responsible for syllabus design.