Supplementary exercises to reinforce what was learned in the textbook. Audio Materials:
We are planning our upcoming German courses using the series. Does the publisher provide a licensed PDF or digital textbook interface for screen-sharing during online instruction? delfin lehrbuch pdf
At first glance, a Delfin PDF looks like a static scan of a textbook. However, because it is a digital file, it reveals a that a physical book hides in its appendix. Here is the interesting feature breakdown of how the PDF changes the user experience: Supplementary exercises to reinforce what was learned in