Researches have shown that outdoor activities prove to be a good learning process for kids. You can take your child to a zoo to let him/her interpret nature with the help of coloring pages. Earth worksheets, pages for coloring, or activity books can be a good option for parents and preschool teachers. Pages with food drawings, animated drawings, alphabets drawings, and many more are also available online that can be used as a printouts.
With online printable coloring pages you never have to keep volumes of coloring books around. Most children change what they would like to color often. They bounce around from one theme or one set of characters to the next. Therefore they may abandon that coloring book with princesses or cars days after you buy it. Printing out the pages though allows them to always get what they want.