Kant declared false the commonplace saying “That may be true in theory, but it won't work in practice.” He acknowledged that there might be difficulties in application, but he said that if a proposition is true in theory, it must work in practice. What about the proposition “If teachers don't ask questions, students will ask more and better ones”? A preponderance of practical and empirical evidence shows that teacher questions suppress student questions (see the Dillon reference). Thus we have every reason to believe that if you want students to develop, ask, and attempt to answer their own questions, we have to quit asking the kinds of questions teachers typically ask.
