This is one student's fabric pieces divided into light, light medium, dark medium, and dark. I tried to provide a good assortment of colors and values in the pack of squares they worked with. Here is where I posted about this exercise 2 years ago. I had 13 very enthusiastic students who all did a great job with the exercises I ran them through. I had them fill out an evaluation form at the end of class and had some good suggestions for improvement in this class.