We had an incident a little while back with people think some people's art was better then others.... which made me not too happy. So I brought out one of my favorite books to teach the lesson that all art is good we just have different tastes!
The kids love the book, and it also taught a bit of history about the famous artists Picasso and Matisse.
When we were done discussing they did self portraits of themselves. They then had to decide were they a Picasso or a Matisse. It was very interesting what they chose and why :).
You can also purchase the book at Amazon here: http://www.amazon.com/When-Pigasso-Mootisse-Nina-Laden/dp/0811811212