New York Times Opinion: "The Case for Teaching Ignorance"
The August 24, 2015, New York Times included an Op-Ed by Jamie Holmes on the importance of teaching students "to recognize the limits of knowledge and to appreciate that questions often deserve as much attention as answers."
Read this "case that focusing on uncertainty can foster latent curiosity, while emphasizing clarity can convey a warped understanding of knowledge," (the New York Times requires a paid subscription but visitors are permitted a limited number of free article reads per month).