"Background knowledge is one reason children who read the most bring the largest amount of information to the learning table and thus understand more of what the teacher of the textbook is teaching... For the impoverished child lacking the travel portfolio of affluence, the best way to accumulate background knowledge is by either reading or being read to." (Page 13-14)
There is no question that my daughter has acquired background knowledge from books. Recently we were in the parking lot at the grocery store, and a taxi cab passed by. My daughter said: "Look! A taxi cab! I've never seen one in real life before." (Forgetting various airport trips, I guess.) She had, however, seen a taxi cab in Night Light by Nicholas Blechman. And despite the one in the book having been somewhat stylized, the rendition was accurate enough for my Baby Bookworm to know one when she saw it.
Do you have examples of ways that your child has used books to build background knowledge? Or is this so pervasive that you don't even notice?
See also my related post about making connections between books and day-to-day life, from this year's Share a Story - Shape a Future literacy blog tour.