My daughter was having problems with completing Day 3. In the printed guide book, it says to do Page 110, Exercise V. I looked at my son's Spanish from last year, and we realized he didn't have to do that exercise. It has also been corrected on the new printable download on lesson 11.
So, if you are doing lesson 11 and have the printed guide book, this should be changed.
Día 3:
Página 109 Exercise IV.

I adjusted the classes from year to year based on the feedback we received from students, so some times the assignments do change. If you prefer to do Page 109, that's fine as well. :-) It's all about practice and effective use.

The newest printed guidebooks match the PDF downloads now as well.
Thank you for your eagle eye! If anything causes frustration, please of course, move forward, or use the answer key to simply stalk through it.

Grateful for your feedback!