Color by number pages are a good way to teach color theory to children. Initial color by number pages can introduce colors like red, yellow, blue, and green – the primary colors and secondary colors. We have a set of color by number preschool free pages for you to select from because kids adore them. Use the directions provided with each image to select the appropriate colors and create a pleasing picture. Then, grab your favorite crayons, markers, or watercolors. Let’s enjoy ourselves!