This question allows your interviewers to get to know what it takes to ruffle your feathers and how you’ll behave when faced with that situation. Find a situation that is fairly common for all teachers and then explain how you’ve dealt with that frustration. Remember, you want to focus on positive aspects of your teaching style, so if you’re still frustrated with a situation and haven’t figured out how to work around it yet, maybe don’t use that one as your example.