Hi Dixie:
I think every instructor makes an impression on every student. I guess what can be debated is whether is was a small or large impression, and to what degree significance the teacher contributed to the student. As teachers, we have a responsibility to our students. To me, student centered implies we put the learning needs of the student ahead of other equally important components, such as our preferences and choices, existing practices and methods, and getting through the material whether the student learns or not. Being sensitive to student needs vs plodding through the tried and true is a simple way to put it. If we care, we will make a positive difference.
Regards, Barry