I would start right from the beggining about the organisation,their goal,the ideas,the basic criteria about being a good teacher, read books about them,the needs for the young generations, and also about a true knowledge.
There were many questions but the major focus was on :
"Why do you want to join the fellowship?"
They want to know about our purpose of joining the fellowship.
This is very important to them as it would help them identify and select the best fellows, who would be shaping the lives of many children.