Written materials should have an appropriate reading level. A simple way to assess readability the difficultly level of written material is to look at the words being used and at the length of sentences. In general, it is easiest to read short sentences and simple, standard words.
The basic approach is to rewrite the material looking for ways to simplify it.
• Substitute simple, concrete words for unfamiliar or abstract words.
• Divide long sentences into two or more short sentences.
• Divide long paragraphs into two or more short paragraphs.
• Add checklists and illustrations to clarify the text.