Opinion | Class Action: Philippines typhoon tragedy offers lesson in generosity

What a lovely thought at this time of year, when many children are focused on getting rather than giving.
Your first consideration should be to assess what he has already learned. Talk about what he knows and understands.
He may understand the events that have taken place, but not comprehend their full impact. Many children see a disaster's aftermath, and learn about the charities supporting the rebuilding, but may think the work is done.
A comprehension of time is often not fully developed in younger children, and the issues surrounding reconstruction are hard to grasp.
Show him pictures from immediately after the typhoon struck and more recent images. Discuss the changes you see. Consider what provisions are needed, including tents, blankets and water filters.