As already mentioned free coloring pages are a great way to teach your child all sorts of things, numbers for example. There are different ways this can be done, one way would be to simply have the number somewhere on the page, such as the number 10, and then somewhere else on the page would be an object or animal cleverly twisted into that number. There could also simply be 10 of something on the page, you can get your child to color the page in and then count out how many apples for example there are, which will obviously correspond to the number on the page.
Children who use coloring pages will also better their ability to concentrate. Being able to concentrate is an important skill for children to have, and the earlier they start developing it, the better. Focusing on a drawing on a page does much for children. Children learn to be patient as they take their time to apply colors to the images in the coloring book. Problems with hyperactivity and attention deficit disorders, as well as attention deficit hyperactivity disorder, also known as ADHD, are diminished, psychologists believe, in children who devote a good portion of their time to coloring pages.