On our art day, we taped watercolor paper to the table for each child and provided them with a live flower in a tiny vase (each child chose his or her flower), a set of watercolor paints, and a cup of water. The kids got right to work!
Here is a link to the lesson plan that I followed.
Both of our girls LOVE painting with watercolors, and I'm so excited the new liquid watercolor set they received for Christmas. We may be painting like Georgia O'Keeffe at home, too!