The interviewer asks this question to gain insight into your unique skills and qualities as a math teacher and what you can bring to the teaching staff that would enhance their abilities. They are looking for evidence of creativity, innovation, and a willingness to collaborate with colleagues. For example, if you have experience using technology to enhance learning, this would be a valuable addition to the team. Alternatively, if you have a background in research, you may be able to bring new ideas and teaching strategies to the classroom. Ultimately, the interviewer wants to assess whether you are a good fit for the school and whether you can contribute to its culture of excellence. Consider your unique personality traits and how they would enhance the teaching staff. For this question, it helps to know the existing teaching staff so you know what you have that contributes to or enhances it.