In a way, we all "teach to the tests", with some exception. This is where uni tutoring may be very different, as - at least for the courses I tutored - students had access to past exams. The irony of it all is that the content rarely changed from semester to semester. Whilst all the content we teach in class can viably be on the exam, when the exam is written, there will always be some questions rewritten to test the same material in a different way (what students like to refer as "tricks"), or critical thinking questions (especially those with no numerical answer, which catches out the "robots" who can't actually understand what they've gone through in the working). Even then, the questions would be at least numerically different but for most part the content was very similar each semester. At face value, this should make it almost impossible to fail, though that doesn't mean everyone will get a High Distinction either (we don't bell curve). Yet the failure rate has been fairly consistent from semester to semester, at best being about 3% from the average. We find this is mainly because people don't listen and don't prepare (from marking exams, it is not unusual to see someone turn in what is basically a blank empty answer booklet for a 2 hour exam); so much for "teaching to the tests"...