Hi David: Great reason for chossssing to do a pretest. We are the subject matter experts (SME), and we became that through education, training, varied work experiences, certifications, and life experiences. We couple these with a passion to teach and provide the resources to deliver, and you have a formula for success. As you say, the students have not had the benefit of these combinations of success-directed pasts. It's only natural that we would want to know where our students stand in their understanding. Also, reading some of the other posts in this forum provide numerous other great reasons to pretest. Regards, Barry