I think it is valuable to have plenty of samples of how things should look like and perhaps some examples of what a quilt looks like when not done with precision. Explanation should accompany these samples. When you are a beginner, you need to see the quality level you are working toward. I don't mean to have a very complex quilt design, but have a very simple quilt to show that is square, has matching seams, no bulk or puckers, flat borders, filled out binding, etc.
Dayle