The NPR recently published an article entitled "Think your an Auditory or Visual Learner? Scientists Say it is Unlikely" The article states that there is no scientific proof for learning styles yet so much has been written and focuses on teaching to a child's learning style.
I am not sure whether or not I agree. On one hand, most people have a combination of learning styles or prefer a specific method of teaching for a specific subject. I have also seen differences in learning styles based upon the age of the student. On the other hand, I know that there are certain techniques that I use and things that I favor over others as I know I will learn the most from using one style or another.