LEARNING HOW TO THINK
Once they've learned how expert thinkers think, how do scientists teach what they've learned to novices? Certainly not by lecturing. "During a lecture," said Robert E. Spanks of Washington University in St. Louis, Mo., "the only mind working at reasonable efficiency is that of the lecturer." That is why cognitive scientists require students to take an active part in learning how to think. "The origins of this new view are quite old," Dr. Lochhead observed, and he quoted Galileo: "You cannot teach a man anything; you can only help him to find it within himself."




