What is modern art?

With the excursion to Art Gallery of WA to see the Picasso to Warhol exhibition coming up soon I have chosen to focus on modern art this term. We have already met Picasso earlier in the year so this term we will be exploring the work of Miro, Matisse, Calder, Lichtenstein and of course Andy Warhol.
I found this video- it's a great way to introduce and explain the concept of modern art to the middle and upper primary kids.