The interviewer wants to know that you can handle the stress associated with being responsible for droves of students at all times. To answer this question, start by giving an example of a situation where you were faced with a stressful situation and you managed it well.
"Whenever I feel overwhelmed with work, I try to divide it into parts and prioritize it by importance. In my last job, when one of my colleagues went out on holidays and another one fell sick, my workload greatly increased. I decided to take up the challenge and worked over time. My supervisor was pleased and treated me to lunch."
"I handle stress very well, and when you call my references, they will attest to this fact. When I am under pressure on the job, I focus on the task at hand and make sure not to get distracted. Staying on deadline is very helpful, and I will delegate when necessary to alleviate some stress."
"I am often under deadline when it comes to providing teachers and school administrators with reports detailing student attendance observations. I know this stress will not go away because my work duties are my work duties. Stress is part of any demanding job, and I embrace it to the fullest. I take good care of myself and prioritize my workload to maintain a healthy balance in my stress levels."