The elimination of conventional tests... is necessary because, as soon as they are used as judgement-making instruments, the whole process of schooling shifts from education to training intended to produce passing grades on tests. … "Courses" turn out to be contingent upon testing. A "course" generally consists of a series of briefings for the great Trivia contest. It's a kind of rigid quiz show. And it seems to work only if the contestants value the "prize." The prize, of course, is a "grade." An appropriate grade entitles the participant to continue playing the Trivia game. All the while, let's not forget, very little, if any, substantive intellectual activity is going on.

Teaching as a Subversive Activity (1969)