Let’s go back to the good old days when students had only flip phones and were learning more, says Ezekiel J Emanuel for The New York Times Opinion. PHILADELPHIA, Pennsylvania: I’ve taught the same course to a class of undergraduate, MBA, medical and nursing students every year for over a decade. While I didn’t change my lectures or teaching style, somehow the students’ evaluations of last year’s class were better than ever before: “This course taught me more than any course I’ve ever learned