One of the biggest challenges of P4C is getting children to generate philosophical questions from a stimulus. Helping them to spot the philosophical concepts or ‘Big Ideas’ is a great start. Once they have these, question making is a whole lot easier.
I sometimes show them a few Concept Cards, or Big Idea cards:
I then ask them, Were any of these ideas in the story?
Here is a Concept Card grid that you are welcome to use.