module 3

• Etymology - explains the origin of the word itself.
• History - discusses the history of the term, its use, and controversies associated with it.
• Cause and Effect - discusses how the situation came about and what effects it may have.
• Description - lists and defines the term.
• Principles of Operation - discusses how something functions, including any special materials or conditions required.
• Classification - shows how the topic fits into a larger category
• Contrast - shows how the topic differs from others in the same class.
• Comparison - shows how the topic is similar to others in the class.
• Analogy - explains and compares two dissimilar topics, where the second is familiar to the audience.
• Examples - represent other things because they have all the main qualities or characteristics that the thing they represent also have.
• Illustrations - are pictures in a book, magazine, etc. or the process of illustrating something.