I have 2 class moderate/severe special education classes and I thought his world would lend itself so well to experiments with liquid media and color mixing. We broke the process down into 3 parts- coloring a sheet with crayon while trying to use the side of the crayon, then placing tape down and adding color with cake tempera, adding more tape and more cake tempera, and finally, more tape and liquid tempera. The cake tempera gave us transparent colors while the liquid temperas gave us more opaque colors. The first class is younger and required more hand over hand assistance with these steps. The second group is older and more independent and through the activity with less help.
At the end of each experiment, students helped each other add paint to large canvases that were already taped. Again, exploring color mixing. Earlier in the year, they created the first layers of color on these by driving vehicles through primary color paint to make secondary colors.