What advice would you give to people considering a career in teaching?
There is no "perfect teacher". We all have our strengths and weaknesses and hopefully we can utilize our skills to be an effective instructor. Be knowledgeable about your subject material and always be prepared for every class, be fair to your students and most important teach with passion!
What's the best thing about teaching?
From time to time you'll come across a former student, or have a former student contact you, or drop in at the school - and they will tell you how you have been an important and meaningful part of their lives and this is priceless.