1st Grade recently studied the artwork of Wassily Kandinsky, who is known for nonobjective art. We had a great aesthetics discussion on why you would want to make a picture that is not of something. Then, the students traced round objects to make their own nonobjective circle art. We used crayons the first day, and watercolors the second day.
The picture below is by a student who received "Artist of the Week" for his amazing work. Below that are two photos of my bulletin board, where I put up every single students' art. It didn't all fit on one camera screen! The text above the art says, "Nonobjective Art is art that purposely doesn't look like anything. Nonobjective art can be patterns, designs, shapes and colors!"