When we ask our kids, "What'd you do in school today?" and they mumble, "Nothin'," they're telling the truth . Steve Perry gets it. He understands why some parents are panicked about what's going on in their kids' classrooms, and how other parents, whose kids supposedly attend the "good" schools, still fear that their children are falling behind . As principal of one of the best performing schools in America - one that sends 100% of its mostly minority...