The videos are not standalone. You need the Aula Internacional Plus 1 textbook (or digital license) to access the pre-viewing activities and post-viewing grammar tasks. A learner just watching the videos on YouTube or a free trial would be confused.

Which specific (e.g., greetings, regular verbs, directions) are you currently focusing on?

If your school uses BlinkLearning, the videos are embedded directly into the digital pages of the ebook.