First I reread the book to see if I enjoy it, and then I do a careful reading/notetaking so that I can decide which grammar to include and how to present it. Below are a few examples which stood out as I read From the Mixed-Up Files of Mrs. Basil E. Frankweiler.
She decided that she would go to the ladies’ room, and Jamie would go to the men’s room just before the museum closed. pg 35
Mrs. Frankweiler’s residence on East 63rd Street was long a Manhattan showplace for what many considered the finest private collections of art in the Western Hemisphere. pg. 59
Students need "real" examples of the grammar in use. They often rush through the reading and would hardly take the time to notice the grammar.
I am currently putting together a packet of Possessive Noun Worksheets for several 4th and 5th grade novels. This award-winning book about a brother and sister's week-long adventure in the Metropolitan Museum of Art will be included in that packet.