I am not sure how the two relate, but my children who knew all their letter sounds, etc and even began reading by the age of 4, could not color in the lines. My DS who is 4 is nothing like his brother and sisters. I have been very concerned because he doesn't know his letter sounds and can not identify his numbers or letters. I have started working more with him at home and he has started coloring in some of the workbooks we have. I almost fell out of my chair last week when I saw his coloring. He is so particular and colors in such short strokes. He doesn't ever go out of the lines and if he does, it frustrates him and he wants to start over. He colors better than my DD who is 8.