A young child may not be able to write or read more than a few words. Worksheets should be created keeping these factors in mind. When you buy worksheets for your children, look for how the concept is explained. Is it pictorial or is it just a collection of words? A pictorial worksheet will hold the attention of a child more than just a combination of words.
For example, if you are using a simple addition and subtraction worksheet with your child, draw or type up another sheet of with squares and numbers printed onto them. Instead of writing the answers to the questions on the worksheet you can get your child to cut and paste the required numbers for the answers from from the second worksheet onto the first.