Shining Time Station is a favorite television show of your 3-year-old niece, Sunmi. The stories on this show revolve around the antics of more than a dozen toy trains. Each train has a name and a number

Your brother is shocked one day when Sunmi told him the name and number associated with each train on the show. Your brother is amazed because to him Thomas looks like James, he's never noticed any numbers on the trains, and Sunmi's memory in other areas does not seem to be extraordinary. What can you tell your brother about how knowledge influences memory that might help explain Sunmi's memory?
What will be an ideal response?

A good answer will be similar to the following:
Tell your brother than knowledge is power. Greater knowledge in a particular area allows one to organize and give meaning to new information. Looking at Sunmi's recall of the trains, you notice that she remembers the names of all of the blue engines, then all of the red engines, etc. Sunmi's knowledge of the train engines makes it easier for her to learn the names and numbers of new engines but does not help her memory in other areas. To your brother, who has very little knowledge of the train engines, all of the trains probably do look alike.