A common complaint from students is that final exams do not always test the kinds of knowledge that is asked for in homework or quizzes or presented in lectures. Whether this perception is accurate or not, it's still an excellent starting point for talking about what you are testing when you give a final exam. The worst final exams can seem unfocused, determined to test everything, or random things. The best final exams are learning moments. If you presented a set of learning goals and objectives to your students on your syllabus, you're way ahead of the game, because that means you've thought through what is important to you for a particular class. The very simplest procedure then is to develop an exam that will demonstrate whether students have achieved these objectives.