According to the publisher, this new edition is "more comprehensive, flexible, and digital," incorporating feedback from over 1,000 teachers: New "Construimos el léxico" section:
version is a comprehensive update designed to be more intuitive and adaptable for learners: aula internacional plus 1 libro del alumno pdf unam better
If you have the book (physical or digital), here is how to align it with the UNAM methodology: According to the publisher, this new edition is
New videotutorials that accompany the book to help with pronunciation. Flexible Layout: According to the publisher