Katherine,
No matter whether you use one of our handwriting programs, or a different handwriting program, it is essential that your little sweetie practice handwriting on paper with a pencil. This requires much more fine motor coordination and dexterity than is required to write with a marker.

Much of this has to do with the fact that it takes more muscle control in the fingers to grip a pencil and to manipulate a fine point like a pencil has, rather than gripping a marker and controlling a wider tip like a marker has. Also, writing on paper has a much different feel than writing on a smoothly gliding wipe-off surface. A pencil does not glide the way a marker does on a wipe-off surface. One last thing that is hard for kiddos is to learn how much pressure to put on a pencil without breaking its tip when writing. This is another skill that takes practice and coordination and cannot be gained with a marker and a wipe-off page. Anyway, I hope that helps!
While you can easily use wipe-off books for extra practice, it is a lower level skill. So, you'll want to be sure to use paper and pencil for the crux of the handwriting instruction.
Blessings,
Carrie