The advantages of coloring pages:
1) Self expression - coloring on a blank "canvas" (paper), is a way for children and grownups alike to reveal themselves. You can tell a lot about the way an individual is feeling by the images that they draw, the colors that they use, and so on. It is very important to give children an opportunity to reveal themselves, and not all children reveal themselves through words and through writing, many use art.
2) Color acknowledgment
3) Therapy - for many individuals (myself consisted of) coloring is restorative. No matter whether it's doodling, or coloring the "finest picture ever", coloring can be a way to de-stress, after a busy early morning of school work, wind down, and calm down, after the stresses of a day at school or work.
4) Grip/Control - many children find out how to hold a pencil, pen, marker, or colored pencil, by very first knowing how to hold a crayon. The small muscles needed for penmanship later on start to be developed while coloring.
6) Structure motor skills
7) Focus - Taking note of a single job for a length of time is necessary for coloring and for all sorts of things throughout one's life.
8) Limits - Another thing that children learn from coloring pages, with preprinted images on them, is how to accept boundaries. While a toddler or preschooler may doodle all over a coloring sheet, with no regard for the boundaries (lines on the coloring page), as the child gets older, they will start to appreciate those lines, and make an effort to color between them. While I encourage blank paper coloring for free expression as often as possible, for many young children pre-printed coloring pages are their very first exposure to printed boundaries. This early exposure to boundaries in print, will be a huge help when handwriting time happens, and the child needs to appreciate the boundaries of the preprinted handwriting lines on the paper.
9) Turning point - This is the last little "importance" of coloring that I will discuss for now, which is that coloring in the lines is a milestone, a sense of achievement, the first step towards a successful academic profession for many children. For many children coloring in the lines is just as crucial as counting to 10, counting to 100, reciting the alphabet, finding out the multiplication realities, and so forth. It's a milestone that says "yes I can" do whatever I discover, and it supplies children with pride, a sense of self worth, and assists them to feel accepted in a society that is often quick to judge, and slow to respond. This sense of achievement will bring them through life, and assist them not to quit so easily, when something brand-new comes along.