How you approach or create your to-do list can make a big difference. Experts weigh in on how to write — and tackle — a to-do list to make it best work for you. As we head into the new year, maybe you ...

Mr. Willingham is a psychologist at the University of Virginia and the author, most recently, of “Outsmart Your Brain: Why Learning Is Hard and How You Can Make It Easy.” Picture your preschooler’s ...