Your response could include something that may have been a challenge in the past, which you have taken steps to rectify. It is important to be truthful, they will be testing your honesty. In addition, they will be checking to see if you provide a weakness that is critical to success in the position. For example, the interview will likely end quickly if you answer you have a difficult time management the classroom. The key to answering the question is to turn a negative into a positive.

I don't suggest using that the traditional statement, "I'm a perfectionist", it is often overused, and will tend to sound phony. It is important you don't get defensive and try to justify why you are weak in a particular subject area, such as social studies. This would make a bad impression, because it may be relevant to the position that you are seeking. Whatever you decide to use, ensure it is not one of the key skills of the position you are seeking. In other words, don't pinpoint classroom discipline and/management or subject area if you are seeking a teaching position.