As an experienced teacher of over 15 years, it's easy to recognize frustration in students. Some of that frustration is admittedly self-imposed, but let's face it; some is teacher/environment imposed. Not all students learn the same way. As a teacher and tutor, I modify my approach to meet the needs of individual students. This task can be quite daunting when you have a classroom full of 25, less than fully engaged pupils; however, when tutoring one on one or in a small group dynamic the task is quite masterfully attained.
I love teaching, I love seeing those "light bulb" moments. Successful teaching/tutoring is measured by student success and learning is gauged by how well mastery has been achieved. That's my goal.