This is a really simple project and it looks awesome when it's finished. Basically, students start by drawing squares around each other until it fills the entire page. Then students traced their hands on top. I taught student's about warm and cool colors. The background needed to be all warm colors and the hand all cool colors or visa versa. We used tempera paints for this project.
I did not come up with this lesson myself. I have seen it posted on several websites before. Not sure who came up with it first, but Kudos to whoever it was.