The benefits of coloring pages:
1) Self expression - coloring on a blank "canvas" (paper), is a method for children and grownups alike to reveal themselves. You can tell a lot about the way a person is feeling by the images that they draw, the colors that they use, and so on. It is important to offer children a chance to reveal themselves, and not all children reveal themselves through words and through writing, many usage art.
2) Color acknowledgment
3) Treatment - for many individuals (myself consisted of) coloring is healing. Despite whether it's scribbling, or coloring the "finest image ever", coloring can be a method to de-stress, after a busy early morning of school work, wind down, and relax, 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 little muscles required for penmanship later begin to be established while coloring.
6) Building motor skills
7) Focus - Taking notice of a single job for a length of time is necessary for coloring and for all sorts of things throughout one's life.
8) Borders - Another thing that children learn from coloring pages, with preprinted images on them, is how to accept borders. While a toddler or young child might doodle all over a coloring sheet, without any respect for the borders (lines on the coloring page), as the child grows older, they will begin to appreciate those lines, and make an effort to color in between them. While I motivate blank paper coloring totally free expression as often as possible, for many young children pre-printed coloring pages are their very first exposure to printed borders. This early exposure to borders in print, will be a huge aid when handwriting time happens, and the child has to appreciate the borders of the preprinted handwriting lines on the paper.
9) Turning point - This is the last little "significance" of coloring that I will mention for now, and that is that coloring in the lines is a turning point, a sense of achievement, the primary step towards a successful scholastic career for many children. For many children coloring in the lines is just as crucial as counting to 10, counting to 100, reciting the alphabet, discovering the multiplication facts, etc. It's a turning point that says "yes I can" do whatever I encounter, and it supplies children with pride, a sense of self worth, and assists them to feel accepted in a society that is often fast to judge, and slow to react. This sense of achievement will bring them through life, and assist them not to give up so quickly, when something new comes along.