I recall reading about a doctoral student or new professor who was teaching an intro computer science course and the whole while all of his peers were telling h

I recall reading about a doctoral student or new professor who was teaching an intro computer science course and the whole while all of his peers were telling him that his course was too difficult for the dolts he had as students. (I can't find the article with what little I remember) By having his students complete much harder, smaller homework than normal (I think?) he was able to push his students farther in the one term than most would be able to get in several. As the final exam approached the instructors asked his peers to go over the exam he had written up to which they replied something like, "you can't give this to your class, it's too hard and they will all fail and that will make you look bad." The instructor was worried, decided his students could hack it and gave them the exam despite of peer unease. Upon grading the exam, a higher than "normal" proportion (as measured from years previous) of the class left with higher grades and greater grasp of material. Now hopefully someone knows what I'm talking about so I can re-read that account.