Elementary school children returning to a wealthy Pennsylvania classroom in the fall will learn that sympathizing with police officers is racist. Gladwyne Elementary School in Lower Merion School District, one of the richest in the nation—will require fourth and fifth graders to read Not My Idea: A Book About Whiteness, which claims that white people who relate to police officers or decline to watch the news are complicit in racism. The curriculum also assigns A Kid's Book About Racism to kindergarten and first graders. Elana Fishbein, mother of two boys and a doctor of social work,said, "The book teaches kids...