The interviewer wants to know how you address and help residents/campers that you've noticed need extra support. With young campers you can use examples about tasks that they haven't learned yet like- tying shoes, reminders to clean up the table, standing in line, etc. With residents you will focus more on ways you made need to reteach or assist the person with items such as- dressing, eating, different games, etc.
The interviewer wants to know that you'll be able to identify and support different needs that campers/residents have. If you can't think of an example that you've done yourself, you can talk about a time that you were informed that staff would be assisting a resident/camper differently.