It's not difficult to create your own color pages. However, it can be time consuming. So here are a couple of websites you can try:
- The All Kids Network features a number of coloring pages ideal for preschoolers. They also have some popular characters as color by number pages but those pages tend to have numbers in very small print.
- The Coloring website features a large number of coloring pages by both number and letter. However, many of the pictures have very small spaces to color.
- Crayola has a few color by number pages. However, some use crayola color names and some introduce the concept of odd and even.
- Print Activities has several color by number pages which I like. The pictures are all made using geometric shapes so the numbers are easy to see and the shapes easy to color.
Finally, if you are following the Ready for Kindergarten program the target I was aiming for was matching number shapes. At one your child should be matching shapes 1 through 3, at two your child should match 1 through 6, at three your child should match 1 through 9 and by four your child should be matching shapes 1 through 12.
My daughter and I have been working on color by number pictures together and at age three she is already matching two digit numbers. I hope they work as well for your children.