Aula Internacional Plus 4 es el nivel 4 del método de español "Aula Internacional Plus", orientado a B2–B2+ (usuarios con nivel intermedio alto). El Libro del Profesor contiene:

The physical Annotated Instructor Edition remains a popular choice for those who prefer having everything in one printed volume during live sessions. Content Highlights for Level B2.1 This manual covers 10 units focusing on: Amazon.com: Aula Internacional Plus 4 Libro del Alumno

Unit 4 of Aula Plus 4 often involves complex logical connectors. The Teacher’s Book contains a "Ficha complementaria" (extra worksheet). With a portable PDF, you can AirDrop that specific page to students’ devices immediately, saving paper and time.