Textbook as a resource

During on of our class discussion we were talking about textbooks as a resource. Currently, I work as a pre-k teacher and we do not have any textbooks. I guess I have an advantage because I always use outside resources when I plan. I requested a grade change for next school year. So I am a little scared because of the discussion. I thought that the upper grade teachers taught from the textbook. I am truly learning a lot from this curriculum course.